When Arcane Proxy enters the battlefield, if you cast it, exile target instant or sorcery card with mana value less than or equal to Arcane Proxy's power from your graveyard. Copy that card. You may cast the copy without paying its mana cost.

//PRT-Prototype_Mech//

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

2/1

As an additional cost to cast this spell, you may sacrifice any number of creatures. This spell costs less to cast for each creature sacrificed this way.

Each opponent sacrifices a creature. Create a 3/6 black and red Avatar creature token with haste and "Whenever this creature attacks, it deals 3 damage to each opponent."

This spell costs less to cast if you have nine or more cards in your graveyard.

Flying

When Capricious Hellraiser enters the battlefield, exile three cards at random from your graveyard. Choose a noncreature, nonland card from among them and copy it. You may cast the copy without paying its mana cost.

Whenever another Zombie enters the battlefield under your control, put a +1/+1 counter on Champion of the Perished.

Mutate <i>(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.)</i>

Lifelink

Whenever this creature mutates, create two 1/1 white Cat creature tokens with lifelink.

Destroy target artifact, target creature, target enchantment, and target land.

At the beginning of combat on your turn, put a +1/+1 counter on target creature you control. Then if that creature has toughness 6 or greater, transform Dormant Grove.

Vigilance

Whenever a source an opponent controls deals damage to you or a permanent you control, that source's controller loses 2 life unless they pay .

, Sacrifice three other creatures: Exile Elesh Norn, then return it to the battlefield transformed under its owner's control. Activate only as a sorcery.

Vigilance

Other creatures you control have vigilance.

<i>(As a Siege enters, choose an opponent to protect it. You and others can attack it. When it's defeated, exile it, then cast it transformed.)</i>

When Invasion of Kamigawa enters the battlefield, tap target artifact or creature an opponent controls and put a stun counter on it. <i>(If a permanent with a stun counter would become untapped, remove one from it instead.)</i>

Iron Apprentice enters the battlefield with a +1/+1 counter on it.

When Iron Apprentice dies, if it had counters on it, put those counters on target creature you control.

Create two 1/1 white Soldier Ally creature tokens.

<i>Berzerker</i> — Khârn the Betrayer attacks or blocks each combat if able.

<i>Sigil of Corruption</i> — When you lose control of Khârn the Betrayer, draw two cards.

<i>The Betrayer</i> — If damage would be dealt to Khârn the Betrayer, prevent that damage and an opponent of your choice gains control of it.

Level up <i>(: Put a level counter on this. Level up only as a sorcery.)</i>

LEVEL 1-5

6/6

LEVEL 6+

6/6

Whenever Lord of Shatterskull Pass attacks, it deals 6 damage to each creature defending player controls.

Whenever Lorthos, the Tidemaker attacks, you may pay . If you do, tap up to eight target permanents. Those permanents don't untap during their controllers' next untap steps.

Flying, ward

Whenever another nontoken Dragon enters the battlefield under your control, create a token that's a copy of it, except the token isn't legendary.

Trample

<i>Warp Vortex</i> — When Mutalith Vortex Beast enters the battlefield, flip a coin for each opponent you have. For each flip you win, draw a card. For each flip you lose, Mutalith Vortex Beast deals 3 damage to that player.

<i>Metalcraft</i> — Razorfield Rhino gets +2/+2 as long as you control three or more artifacts.

, : Target opponent mills three cards. Put a land card from their graveyard onto the battlefield tapped under your control. It gains "If this land would leave the battlefield, exile it instead of putting it anywhere else."

0, , Sacrifice Realmbreaker, the Invasion Tree: Search your library for any number of Praetor cards, put them onto the battlefield, then shuffle.

Flying

Whenever Rooftop Saboteurs deals combat damage to a player or battle, draw a card.

Create a 0/0 green and blue Fractal creature token. Put X +1/+1 counters on it, where X is one plus the total number of instant and sorcery cards you own in exile and in your graveyard.

, : Tap target creature.

<i>Corrupted</i> — , : Tap target creature. Activate only if an opponent has three or more poison counters.

: Add .

Flying

When Sphinx of Uthuun enters the battlefield, reveal the top five cards of your library. An opponent separates those cards into two piles. Put one pile into your hand and the other into your graveyard.

Flying, trample

When Tanazir Quandrix enters the battlefield, double the number of +1/+1 counters on target creature you control.

Whenever Tanazir Quandrix attacks, you may have the base power and toughness of other creatures you control become equal to Tanazir Quandrix's power and toughness until end of turn.

, Sacrifice Terramorphic Expanse: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

<i>(As this Saga enters and after your draw step, add a lore counter.)</i>

I — The Great Work deals 3 damage to target opponent and each creature they control.

II — Create three Treasure tokens.

III — Until end of turn, you may cast instant and sorcery spells from any graveyard. If a spell cast this way would be put into a graveyard, exile it instead. Exile The Great Work, then return it to the battlefield <i>(front face up)</i>.

Each creature you control with a level counter on it gets +2/+2.

First strike

Whenever you cast an instant or sorcery spell, Urabrask deals 1 damage to target opponent. Add .

: Exile Urabrask, then return it to the battlefield transformed under its owner's control. Activate only as a sorcery and only if you've cast three or more instant and/or sorcery spells this turn.