When Hecatomb enters, sacrifice Hecatomb unless you sacrifice four creatures.

Tap an untapped Swamp you control: Hecatomb deals 1 damage to any target.

Equipped creature gets +X/+X, where X is its mana value.

Equip

Haste

When Hellhole Rats enters, target player discards a card. Hellhole Rats deals damage to that player equal to that card's mana value.

, : Target creature gains banding until end of turn. (Any creatures with banding, and up to one without, can attack in a band. Bands are blocked as a group. If any creatures with banding a player controls are blocking or being blocked by a creature, that player divides that creature's combat damage, not its controller, among any of the creatures it's being blocked by or is blocking.)

Whenever a player casts a red spell, you may pay . If you do, untap target permanent.

Flying

At the beginning of combat on your turn, choose one that hasn't been chosen —

• Each player sacrifices a creature.

• You draw a card and you lose 1 life.

• Transform Henrika Domnathi.

Domain — Create a 3/3 green Beast creature token for each basic land type among lands you control.

, Discard Herd Migration: Search your library for a basic land card, reveal it, put it into your hand, then shuffle. You gain 3 life.

When a player casts a spell, sacrifice Hesitation and counter that spell.

For Mirrodin (When this Equipment enters, create a 2/2 red Rebel creature token, then attach this to it.)

Equipped creature gets +2/+2.

Whenever equipped creature attacks, if it's the first combat phase of the turn, untap each attacking creature. After this phase, there is an additional combat phase.

Equip

All Slivers have "Pay 2 life: Return this permanent to its owner's hand."

Hidden Cataract enters tapped.

: Add .

, , Sacrifice Hidden Cataract: Discover 4. Activate only as a sorcery. (Exile cards from the top of your library until you exile a nonland card with mana value 4 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.)

When an opponent controls a creature with power 4 or greater, if Hidden Predators is an enchantment, Hidden Predators becomes a 4/4 Beast creature.

Draw two cards.

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

Flying, trample

Spells you cast cost less to cast for each target.

Spells your opponents cast cost more to cast for each target.

Creatures you control get +0/+1 for each Gate you control and have vigilance.

Whenever one or more nontoken creatures you control die, investigate. This ability triggers only once each turn. (Create a Clue token. It's an artifact with ", Sacrifice this artifact: Draw a card.")

Training (Whenever this creature attacks with another creature with greater power, put a +1/+1 counter on this creature.)

, Remove two +1/+1 counters from among creatures you control: Destroy target artifact or enchantment.

Flying

Whenever a creature becomes the target of a spell or ability, destroy that creature.

When Hostile Investigator enters, target opponent discards a card.

Whenever one or more players discard one or more cards, investigate. This ability triggers only once each turn. (Create a Clue token. It's an artifact with ", Sacrifice this artifact: Draw a card.")

When Hotshot Investigators enters, return up to one other target creature to its owner's hand. If you controlled it, investigate. (Create a Clue token. It's an artifact with ", Sacrifice this artifact: Draw a card.")

This spell costs less to cast if there are ten or more nonland permanents on the battlefield.

Destroy all nonland permanents.

When Huatli, Poet of Unity enters, search your library for a basic land card, reveal it, put it into your hand, then shuffle.

: Exile Huatli, then return her to the battlefield transformed under her owner's control. Activate only as a sorcery.

Each creature you control assigns combat damage equal to its toughness rather than its power.

−3: You gain life equal to the greatest toughness among creatures you control.

Target creature you control gets +1/+0 until end of turn. It deals damage equal to its power to target creature an opponent controls.

Vigilance (Attacking doesn't cause this creature to tap.)

: Add one mana of any color. Spend this mana only to cast a creature spell.

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.)

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

Vigilance

Target creature perpetually gets -2/-0.

Target creature gets -2/-0 until end of turn.

: Icatian Infantry gains first strike until end of turn.

: Icatian Infantry gains banding until end of turn. (Any creatures with banding, and up to one without, can attack in a band. Bands are blocked as a group. If any creatures with banding you control are blocking or being blocked by a creature, you divide that creature's combat damage, not its controller, among any of the creatures it's being blocked by or is blocking.)

: Target Soldier creature gets +1/+0 until end of turn.

Banding (Any creatures with banding, and up to one without, can attack in a band. Bands are blocked as a group. If any creatures with banding you control are blocking or being blocked by a creature, you divide that creature's combat damage, not its controller, among any of the creatures it's being blocked by or is blocking.)

, : Target creature gains first strike until end of turn.

Icatian Store enters tapped.

You may choose not to untap Icatian Store during your untap step.

At the beginning of your upkeep, if Icatian Store is tapped, put a storage counter on it.

, Remove any number of storage counters from Icatian Store: Add for each storage counter removed this way.

Flash

Flying

When Ice-Fang Coatl enters, draw a card.

Ice-Fang Coatl has deathtouch as long as you control at least three other snow permanents.

Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)

When Ichor Rats enters, each player gets a poison counter.

Each +1/+1 counter on a creature you control is also a Food token. (It's an artifact with ", , Sacrifice this artifact: You gain 3 life.")

, : Roll two six-sided dice. For each odd result, put a +1/+1 counter on a creature of your choice. Activate only as a sorcery.

, : Tap target artifact, creature, or land.

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.

, , Reveal two cards from your hand that share a color: Draw a card.

Counter target artifact or enchantment spell. Its controller gains life equal to its mana value.

Exile up to two target creatures you control, then return those cards to the battlefield under their owner's control.

Draw a card.

Creatures target opponent controls attack this turn if able. During that player's next untap step, creatures they control don't untap.

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

: Put a +1/+1 counter on target creature for each Elf you control.

Destroy target attacking creature.

: Immolating Souleater gets +1/+0 until end of turn. ( can be paid with either or 2 life.)

Whenever an opponent activates an ability of an artifact, creature, or land that isn't a mana ability, Immolation Shaman deals 1 damage to that player.

: Immolation Shaman gets +3/+3 and gains menace until end of turn.

Whenever another creature you control enters, you gain 1 life.

If CARDNAME is in your opening hand and you're not the starting player, you may reveal it. If you do, you become the starting player.

Haste

Create three 2/2 white Samurai creature tokens with vigilance. Scry 3.