Flying

Landfall — Whenever a land you control enters, Akoum Hellkite deals 1 damage to any target. If that land is a Mountain, Akoum Hellkite deals 2 damage instead.

Flying

Whenever Backdraft Hellkite attacks, each instant and sorcery card in your graveyard gains flashback until end of turn. The flashback cost is equal to its mana cost.

Artifact offering (You may cast this spell as thought it had flash by sacrificing an artifact and paying the difference in mana costs between this and the sacrificed artifact. Mana cost includes color.)

Flying, double strike

Creatures attacking your opponents have double strike.

Trample, haste

At the beginning of the end step, Blitz Hellion's owner shuffles it into their library.

When a player other than Bronze Bombshell's owner controls it, that player sacrifices it. If the player does, Bronze Bombshell deals 7 damage to the player.

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

Flying

When Capricious Hellraiser enters, 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.

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 Chromeshell Crab is turned face up, you may exchange control of target creature you control and target creature an opponent controls.

Imprint — When Clone Shell enters, look at the top four cards of your library, exile one face down, then put the rest on the bottom of your library in any order.

When Clone Shell dies, turn the exiled card face up. If it's a creature card, put it onto the battlefield under your control.

Flying

, : Crimson Hellkite deals X damage to target creature. Spend only red mana on X.

When Duskshell Crawler enters, put a +1/+1 counter on target creature.

Each creature you control with a +1/+1 counter on it has trample. (It can deal excess combat damage to the player or planeswalker it's attacking.)

Reach

As long as you control ten or more lands, creatures you control get +2/+2.

Whenever Fecund Greenshell or another creature you control with toughness greater than its power enters, look at the top card of your library. If it's a land card, you may put it onto the battlefield tapped. Otherwise, put it into your hand.

Flying, trample

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.)

Haste

: Flowstone Hellion gets +1/-1 until end of turn.

Bloodthirst 6 (If an opponent was dealt damage this turn, this creature enters with six +1/+1 counters on it.)

Flying

When you cast this spell, each player sacrifices X creatures. Gluttonous Hellkite enters with two +1/+1 counters on it for each creature sacrificed this way.

Flying, trample

, Sacrifice Grave-Shell Scarab: Draw a card.

Dredge 1 (If you would draw a card, you may mill a card instead. If you do, return this card from your graveyard to your hand.)

All creatures get -1/-0 until end of turn.

First strike, haste

Discard a card at random: Hell-Bent Raider gains protection from white until end of turn.

, : Destroy target land. If that land was nonbasic, untap Helldozer.

At the beginning of each opponent's upkeep, if that player has two or fewer cards in hand, Hellfire Mongrel deals 2 damage to that player.

Haste

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

Sacrifice all creatures you control, then create that many 4/4 red Hellion creature tokens.

Flying, haste

Whenever Hellkite Charger attacks, you may pay . If you do, untap all attacking creatures and after this phase, there is an additional combat phase.

Devour 1 (As this enters, you may sacrifice any number of creatures. This creature enters with that many +1/+1 counters on it.)

Hellkite Hatchling has flying and trample if it devoured a creature.

Flying, trample, haste

: Hellkite Overlord gets +1/+0 until end of turn.

: Regenerate Hellkite Overlord.

Flying, trample

Whenever Hellkite Tyrant deals combat damage to a player, gain control of all artifacts that player controls.

At the beginning of your upkeep, if you control twenty or more artifacts, you win the game.

Creatures you control have haste and attack each combat if able.

, Sacrifice a creature: Return target creature card from your graveyard to the battlefield. Activate only during your upkeep.

Trample, haste

At the beginning of the end step, sacrifice Hellspark Elemental.

Unearth (: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

Other outlaws you control have haste. (Assassins, Mercenaries, Pirates, Rogues, and Warlocks are outlaws.)

When Hellspur Posse Boss enters, create two 1/1 red Mercenary creature tokens with ": Target creature you control gets +1/+0 until end of turn. Activate only as a sorcery."

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.

Destroy target land. Into the Maw of Hell deals 13 damage to target creature.

When Ironshell Beetle enters, put a +1/+1 counter on target creature.

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)

When this creature enters, surveil 2. (Look at the top two cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)

Flying

Whenever you cast a noncreature spell, create an X/X red Dragon Illusion creature token with flying and haste, where X is the amount of mana spent to cast that spell. Exile that token at the beginning of the next end step.

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

Whenever Meandering Towershell attacks, exile it. Return it to the battlefield under your control tapped and attacking at the beginning of the declare attackers step on your next turn.

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 Orcish Hellraiser dies, it deals 2 damage to target player or planeswalker.

Flying

Whenever Ragefire Hellkite attacks, you may sacrifice another creature. If you do, Ragefire Hellkite gains double strike until end of turn.

Reach

Disguise (You may cast this card face down for as a 2/2 creature with ward . Turn it face up any time for its disguise cost.)

Starting with the next opponent in turn order, each player chooses a creature you don't control. Destroy the chosen creatures.

Sacrifice Shambling Shell: Put a +1/+1 counter on target creature.

Dredge 3 (If you would draw a card, you may mill three cards instead. If you do, return this card from your graveyard to your hand.)

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

Target creature you control gets +0/+3 until end of turn. If this spell was kicked, that creature also gains hexproof until end of turn. (It can't be the target of spells or abilities your opponents control.)

Hideaway 4 (When this land enters, look at the top four cards of your library, exile one face down, then put the rest on the bottom in a random order.)

Shelldock Isle enters tapped.

: Add .

, : You may play the exiled card without paying its mana cost if a library has twenty or fewer cards in it.

Flying (This creature can't be blocked except by creatures with flying or reach.)

: Shivan Hellkite deals 1 damage to any target.

Flying

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

: Destroy each nonland permanent with mana value X whose controller was dealt combat damage by this creature this turn. Activate only once each turn.

Flying, haste

At the beginning of combat on your turn, choose an opponent at random that Territorial Hellkite didn't attack during your last combat. Territorial Hellkite attacks that player this combat if able. If you can't choose an opponent this way, tap Territorial Hellkite.

Defender

At the beginning of your upkeep, put a spore counter on Thallid Shell-Dweller.

Remove three spore counters from Thallid Shell-Dweller: Create a 1/1 green Saproling creature token.

Changeling (This card is every creature type.)

: Switch Turtleshell Changeling's power and toughness until end of turn.

Unleash Shell deals 5 damage to target creature or planeswalker and 2 damage to that permanent's controller.

Volcano Hellion has echo , where X is your life total. (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 Volcano Hellion enters, it deals an amount of damage of your choice to you and target creature. The damage can't be prevented.