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

Until end of turn, target creature loses all abilities and has base power and toughness 0/1.

: Draw two cards. Target opponent gains control of Humble Defector. Activate only during your turn.

Destroy target creature with power 4 or greater.

Investigate.(Create a Clue token. It's an artifact with ", Sacrifice this artifact: Draw a card.")

Target opponent reveals their hand. You choose a nonland card from it. That player discards that card. Put a +1/+1 counter on a creature you control.

Flying

Whenever you attack with two or more creatures,

Augment (, Reveal this card from your hand: Combine it with target host. Augment only as a sorcery.)

Rampage 1 <I>(Whenever this creature becomes blocked, it gets +1/+1 until end of turn for each creature blocking it beyond the first.)</I>

Flying

Soulshift 4 (When this creature dies, you may return target Spirit card with mana value 4 or less from your graveyard to your hand.)

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

Target creature gets +1/+0 until end of turn for each artifact you control.

As long as you control a green or blue permanent, you may cast Hungering Yeti as though it had flash. (You may cast it any time you could cast an instant.)

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.)

Cats you control have protection from Rats. (They can't be blocked, targeted, or dealt damage by Rats.)

At the beginning of your end step, target opponent creates a 1/1 black Rat creature token with deathtouch.

Whenever a Rat dies, put a +1/+1 counter on each Cat you control.

As long as you control another Wolf or Werewolf, Hungry Ridgewolf gets +1/+0 and has trample.

Target creature blocks target creature this turn if able.

Target green creature you control gets +2/+2 until end of turn. It fights target green creature an opponent controls.

Menace

When Hunted Bonebrute enters, target opponent creates two 1/1 white Dog creature tokens.

When Hunted Bonebrute dies, each opponent loses 3 life.

Disguise

Flying, haste

When Hunted Dragon enters, target opponent creates three 2/2 white Knight creature tokens with first strike.

Trample

When Hunted Horror enters, target opponent creates two 3/3 green Centaur creature tokens with protection from black.

Menace

When Hunted Nightmare enters, target opponent puts a deathtouch counter on a creature they control.

When Hunted Troll enters, target opponent creates four 1/1 blue Faerie creature tokens with flying.

: Regenerate Hunted Troll.

When Hunted Wumpus enters, each other player may put a creature card from their hand onto the battlefield.

All Sliver creatures have provoke. (Whenever a Sliver attacks, its controller may have target creature defending player controls untap and block it if able.)

Equipped creature gets +1/+1.

Equipped creature has deathtouch during your turn. Otherwise, it has reach.

Equip (: Attach to target creature you control. Equip only as a sorcery.)

Put a +1/+1 counter on target creature you control. Then that creature deals damage equal to its power to target creature you don't control.

Choose target creature you control. Whenever that creature deals combat damage to a player or planeswalker this turn, draw that many cards.

Until end of turn, target creature gets +3/+3 and gains trample and "Whenever this creature deals combat damage to a player, draw that many cards."

Whenever Hunting Cheetah deals damage to an opponent, you may search your library for a Forest card, reveal that card, put it into your hand, then shuffle.

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."

Echo (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)

When Hunting Moa enters or dies, put a +1/+1 counter on target creature.

Create three 1/1 green Elf Warrior creature tokens.

Reinforce 3— (, Discard this card: Put three +1/+1 counters on target creature.)

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

Search your library for up to two Forest cards, put them onto the battlefield tapped, then shuffle.

If this spell was kicked, untap all Forests put onto the battlefield this way. They become 3/3 green creatures with haste that are still lands.

Whenever this creature enters or transforms into Huntmaster of the Fells, create a 2/2 green Wolf creature token and you gain 2 life.

At the beginning of each upkeep, if no spells were cast last turn, transform Huntmaster of the Fells.

During turns other than yours, this spell costs more to cast.

Return all nonland permanents to their owners' hands. End the turn. (Exile all spells and abilities from the stack, including this card. The player whose turn it is discards down to their maximum hand size. Damage wears off, and "this turn" and "until end of turn" effects end.)

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.)

, Sacrifice another creature: Hurler Cyclops deals 1 damage to any target.

Denimwalk (This creature can't be blocked as long as defending player is wearing denim.)

: Target creature can't be regenerated this turn.

Destroy all enchantments.

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

Flash

Flying

Creatures entering don't cause abilities to trigger.

This spell costs less to cast for each creature card you own in exile and in your graveyard.

Menace, deathtouch

Target creature attacks or blocks this turn if able.

: Monstrosity X. (If this creature isn't monstrous, put X +1/+1 counters on it and it becomes monstrous.)

When Hydra Broodmaster becomes monstrous, create X X/X green Hydra creature tokens.

You may exert Hydra Trainer as it attacks. When you do, target creature gets +X/+X until end of turn, where X is the number of counters on permanents you control. (An exerted creature won't untap during your next untap step.)

: Adapt 2. (If this creature has no +1/+1 counters on it, put two +1/+1 counters on it.)

Enchant creature

When Hydra's Growth enters, put a +1/+1 counter on enchanted creature.

At the beginning of your upkeep, double the number of +1/+1 counters on enchanted creature.

As Hydroelectric Laboratory enters, you may pay 3 life. If you don't, it enters tapped.

: Add .

Target land becomes a 3/3 Elemental creature with flying until end of turn. It's still a land.

Attacking creatures get -2/-0 until end of turn.

Draw a card.

Flying

, Sacrifice Hydromorph Gull: Counter target spell that targets a creature you control.