Hagra Constrictor enters with two +1/+1 counters on it.

Each creature you control with a +1/+1 counter on it has menace. (A creature with menace can't be blocked except by two or more creatures.)

Whenever Hagra Diabolist or another Ally you control enters, you may have target player lose life equal to the number of Allies you control.

: Target creature gets -1/-1 until end of turn.

Hail Storm deals 2 damage to each attacking creature and 1 damage to you and each creature you control.

Tap an untapped creature you control: Target player mills a card.

At the beginning of combat on your turn, each Merfolk creature you control explores. (Reveal the top card of your library. Put that card into your hand if it's a land. Otherwise, put a +1/+1 counter on the exploring creature, then put the card back or put it into your graveyard.)

Whenever Hakbal of the Surging Soul attacks, you may put a land card from your hand onto the battlefield. If you don't, draw a card.

Flying

Whenever Hakka, Whispering Raven deals combat damage to a player, return it to its owner's hand, then scry 2.

Haste

Halam Djinn gets -2/-2 as long as red is the most common color among all permanents or is tied for most common.

Reach

Whenever another creature you control enters, you may pay . When you do, that creature deals damage equal to its power to target creature.

Partner (You can have two commanders if both have partner.)

Whenever you cast a creature spell, Halcyon Glaze becomes a 4/4 Illusion creature with flying in addition to its other types until end of turn.

Haldir, Lórien Lieutenant enters with X +1/+1 counters on it.

Vigilance

: Until end of turn, other Elves you control gain vigilance and get +1/+1 for each +1/+1 counter on Haldir.

Vigilance

Stunning Strike — , : Tap target creature.

Trample

At the beginning of each end step, if an opponent was dealt damage this turn,

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

Whenever a nontoken creature enters,

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

Whenever Halimar Excavator or another Ally you control enters, target player mills X cards, where X is the number of Allies you control.

Level up (: Put a level counter on this. Level up only as a sorcery.)

LEVEL 1-4

0/6

LEVEL 5+

6/6

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)

Haste

, : Target creature can't block this turn.

: Add .

, : Put target enchantment card from your graveyard on top of your library.

: Add .

, : Add one mana of any color.

: Put a +1/+1 counter on target creature. Activate only as a sorcery and only if you've cast an instant or sorcery spell this turn.

: Add .

, : Add one mana of any color.

, : Create a tapped Powerstone token. (It's an artifact with ": Add . This mana can't be spent to cast a nonartifact spell.")

As Hall of Triumph enters, choose a color.

Creatures you control of the chosen color get +1/+1.

Prevent all damage target spell would deal this turn. You gain life equal to the damage prevented this way.

(: Add or .)

As Hallowed Fountain enters, you may pay 2 life. If you don't, it enters tapped.

As long as you control seven or more enchantments, creatures you control have flying and vigilance.

Whenever you cast an enchantment spell, create a white Spirit Cleric creature token with "This creature's power and toughness are each equal to the number of Spirits you control."

Until end of turn, if a creature would enter and it wasn't cast, exile it instead.

Draw a card.

Exile target nonlegendary creature, then return it to the battlefield under its owner's control. If it entered under your control, put a +1/+1 counter on it. Otherwise, tap it.

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

Cumulative upkeep (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

Creatures that attacked during their controller's last turn can't attack.

, , Untap a tapped creature you control: Create a 1/1 green and white Citizen creature token.

, , Untap two tapped creatures you control: Draw a card.

, , Untap fifteen tapped creatures you control: You win the game.

Intimidate (This creature can't be blocked except by artifact creatures and/or creatures that share a color with it.)

When Halo Hunter enters, destroy target Angel.

When Halo-Charged Skaab enters, each player mills two cards. Then you may put an instant, sorcery, or battle card from your graveyard on top of your library. (To mill two cards, a player puts the top two cards of their library into their graveyard.)

Counter target artifact spell.

Draw a card.

If an opponent would create one or more tokens, they create half that many of each of those kinds of tokens instead, rounded down.

If an opponent would put one or more counters on a permanent or player, they put half that many of each of those kinds of counters on that permanent or player instead, rounded down.

Whenever Hamlet Captain attacks or blocks, other Humans you control get +1/+1 until end of turn.

Ward (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays .)

Hamlet Vanguard enters with two +1/+1 counters on it for each other nontoken Human you control.

Mentor (Whenever this creature attacks, put a +1/+1 counter on target attacking creature with lesser power.)

As Hammer Jammer enters, roll a six-sided die. Hammer Jammer enters with a number of +1/+1 counters on it equal to the result.

Whenever you roll a die, remove all +1/+1 counters from Hammer Jammer, then put a number of +1/+1 counters on it equal to the result.

Hammer of Bogardan deals 3 damage to any target.

: Return Hammer of Bogardan from your graveyard to your hand. Activate only during your upkeep.

Creatures you control have haste.

, , Sacrifice a land: Create a 3/3 colorless Golem enchantment artifact creature token.

Whenever you cast a spell with a Goblin Explosioneers watermark, Hammerfest Boomtacular deals 2 damage to any target.

Enchant creature

When Hammerhand enters, target creature can't block this turn.

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

: Add .

: Target creature loses all landwalk abilities until end of turn.

Myriad (Whenever this creature attacks, for each opponent other than defending player, you may create a token copy that's tapped and attacking that player or a planeswalker they control. Exile the tokens at end of combat.)

Whenever Hammers of Moradin attacks, for each opponent, tap up to one target creature that player controls.

This spell costs less to cast for each creature you control with a +1/+1 counter on it.

Creature spells you cast cost less to cast for each creature you control with a +1/+1 counter on it.

Hanabi Blast deals 2 damage to any target. Return Hanabi Blast to its owner's hand, then discard a card at random.

Protection from white

Bushido 1 (Whenever this creature blocks or becomes blocked, it gets +1/+1 until end of turn.)

You may sacrifice four Eldrazi Spawn rather than pay this spell's mana cost.

Annihilator 1 (Whenever this creature attacks, defending player sacrifices a permanent of their choice.)

Protection from black

Bushido 1 (Whenever this creature blocks or becomes blocked, it gets +1/+1 until end of turn.)

Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)

At the beginning of combat on your turn, equipped creature or a creature you control named Vecna gets +X/+X until end of turn, where X is the number of cards in your hand.

Equip—Pay 1 life for each card in your hand.

Equip

During combat, players can't cast instant spells or activate abilities that aren't mana abilities.