You may have Hulking Metamorph enter the battlefield as a copy of an artifact or creature you control, except it's an artifact creature in addition to its other types, and its power and toughness are equal to Hulking Metamorph's power and toughness.

//PRT-Prototype_Mech//

Prototype (You may cast this spell with different mana cost, color, and size. It keeps its abilities and types.)

3/3

Each artifact spell costs more to cast for each artifact its controller controls.

Target creature gets +1/+0 and gains first strike until end of turn.

Splice onto Arcane—Tap an untapped white creature you control. (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)

Create a 3/1 black and red Vampire creature token with trample, lifelink, and haste. Sacrifice it at the beginning of the next end step.

Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Threshold — As long as seven or more cards are in your graveyard, Hunting Grounds has "Whenever an opponent casts a spell, you may put a creature card from your hand onto the battlefield."

First strike

Dinosaur spells you cast have prowl . (You may cast a spell for its prowl cost if you dealt combat damage to a player this turn with a creature with any of its creature types.)

Mutate (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)

Whenever this creature mutates, other creatures you control get +X/+X until end of turn, where X is the number of times this creature has mutated.

At the beginning of your end step, if you've cast a noncreature spell this turn, reveal the top five cards of your library. For each card type among noncreature spells you've cast this turn, you may put a card of that type from among the revealed cards into your hand. Put the rest on the bottom of your library in a random order.

Counter target artifact or creature spell. Discover X, where X is that spell's mana value. (Exile cards from the top of your library until you exile a nonland card with that mana value or less. Cast it without paying its mana cost or put it into your hand. Put the rest on the bottom in a random order.)

Kicker (You may pay an additional as you cast this spell.)

Hurloon Battle Hymn deals 4 damage to target creature or planeswalker. If this spell was kicked, you gain 4 life.

When you cast this spell, you gain half X life and draw half X cards. Round down each time.

Flying, trample

Hydroid Krasis enters the battlefield with X +1/+1 counters on it.

Flying, haste

You may cast sorcery spells as though they had flash. (You may cast them any time you could cast an instant.)

Bestow (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.)

Flying

You control enchanted creature.

Enchanted creature gets +1/+1 and has flying.

Flying

When Hypnox enters the battlefield, if you cast it from your hand, exile all cards from target opponent's hand.

When Hypnox leaves the battlefield, return the exiled cards to their owner's hand.

(An ongoing scheme remains face up until it's abandoned.)

Each opponent can't cast more than one spell each turn.

At the beginning of your upkeep, if no opponent cast a spell since your last turn ended, abandon this scheme.

Whenever a player draws their second card each turn, that player exiles the top card of their library.

During each player's turn, that player may cast a spell from among the cards they don't own exiled with Ian Malcolm, Chaotician, and mana of any type can be spent to cast it.

Whenever a player casts a spell, any other player may pay that spell's mana cost. If a player does, counter the spell. <I>(Mana cost includes color.)</I>

This spell costs less to cast for each snow land you control.

When Icebreaker Kraken enters the battlefield, artifacts and creatures target opponent controls don't untap during that player's next untap step.

Return three snow lands you control to their owner's hand: Return Icebreaker Kraken to its owner's hand.

Flying

Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

When Icefeather Aven is turned face up, you may return another target creature to its owner's hand.

Whenever an opponent casts an instant spell other than the first instant spell that player casts each turn, Ichneumon Druid deals 4 damage to that player.

Target creature gets -3/-3 until end of turn.

Cycling (, Discard this card: Draw a card.)

Madness (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Planeswalkers you control have "0: Proliferate" and "–12: Take an extra turn after this one."

Whenever you cast a noncreature spell, choose a counter on target permanent. Put an additional counter of that kind on that permanent.

This spell costs less to cast if there is a land card in your graveyard.

When Igneous Elemental enters the battlefield, you may have it deal 2 damage to target creature.

Exile the top three cards of your library. Until the end of your next turn, you may play those cards. If this spell was cast from a graveyard, you may play cards this way without paying their mana costs.

Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Ceremorphosis — When Illithid Harvester enters the battlefield, turn any number of target tapped nontoken creatures face down. They're 2/2 Horror creatures.

Kicker and/or (You may pay an additional and/or as you cast this spell.)

Illuminate deals X damage to target creature. If this spell was kicked with its kicker, it deals X damage to that creature's controller. If this spell was kicked with its kicker, you draw X cards.

: You may choose a creature card in your hand whose mana cost could be paid by some amount of, or all of, the mana you spent on . If you do, you may cast that card face down as a 2/2 creature spell without paying its mana cost. If the creature that spell becomes as it resolves has not been turned face up and would assign or deal damage, be dealt damage, or become tapped, instead it's turned face up and assigns or deals damage, is dealt damage, or becomes tapped. Activate only as a sorcery.

Flash (You may cast this spell any time you could cast an instant.)

Whenever Illusory Ambusher is dealt damage, draw that many cards.

Flying

When you cast a spell, sacrifice Illusory Demon.

When Imodane's Recruiter enters the battlefield, creatures you control get +1/+0 and gain haste until end of turn.

At the beginning of each player's end step, if that player didn't cast a spell this turn, Impatience deals 2 damage to that player.

Flying

Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

When Imperial Hellkite is turned face up, you may search your library for a Dragon card, reveal it, put it into your hand, then shuffle.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)

Indestructible

Buyback (You may pay an additional as you cast this spell. If you do, put this card into your hand as it resolves.)

Target creature attacks this turn if able.

At the beginning of your upkeep, you may cast a permanent spell from your hand with mana value equal to 1 plus the highest mana value among other permanents you control without paying its mana cost. If you don't, scry 1.

Kicker (You may pay an additional as you cast this spell.)

Gain control of target creature until end of turn. Untap that creature. It gains haste until end of turn. If this spell was kicked, sacrifice that creature at the beginning of the next end step.

When Iname as One enters the battlefield, if you cast it from your hand, you may search your library for a Spirit permanent card, put it onto the battlefield, then shuffle.

When Iname as One dies, you may exile it. If you do, return target Spirit permanent card from your graveyard to the battlefield.

As an additional cost to cast this spell, sacrifice an artifact.

Incendiary Sabotage deals 3 damage to each creature.

Search your library for a card and put that card into your hand. If this spell was cast from a graveyard, instead search your library for two cards and put those cards into your hand. Then shuffle.

Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Create five 1/1 white Human creature tokens. If this spell was cast from a graveyard, create ten of those tokens instead.

Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Copy target instant or sorcery spell you control. If this spell was cast from a graveyard, copy that spell twice instead. You may choose new targets for the copies.

Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Bestow (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached.)

Afterlife 1 (When this permanent is put into a graveyard from the battlefield, create a 1/1 white and black Spirit creature token with flying.)

Enchanted creature gets +1/+1 and has afterlife 1.

Counter target spell. If was spent to cast this spell, that spell's controller mills X cards, where X is the spell's mana value.

Suspend 3— (Rather than cast this card from your hand, pay and exile it with three time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, you may cast it without paying its mana cost.)

Search target opponent's library for a creature card and put that card onto the battlefield under your control. Then that player shuffles.

Enchant player

Spells you cast that target enchanted player cost less to cast.

At the beginning of enchanted player's upkeep, that player loses 1 life and you gain 1 life.

As an additional cost to cast this spell, return X Swamps you control to their owner's hand.

Infernal Harvest deals X damage divided as you choose among any number of target creatures.

Whenever you cast your second spell each turn, put a +1/+1 counter on Infernal Pet and it gains flying until end of turn.

Flying, trample

Skip your draw step.

Whenever you play a land or cast a spell, you draw a card and you lose 1 life.

Whenever Infestation Expert enters the battlefield or attacks, create a 1/1 green Insect creature token.

Daybound (If a player casts no spells during their own turn, it becomes night next turn.)

Whenever Infested Werewolf enters the battlefield or attacks, create two 1/1 green Insect creature tokens.

Nightbound (If a player casts at least two spells during their own turn, it becomes day next turn.)