Whenever Boros Reckoner is dealt damage, it deals that much damage to any target. {R/W}: Boros Reckoner gains first strike until end of turn.

Whenever Broodhatch Nantuko is dealt damage, you may create that many 1/1 green Insect creature tokens. Morph {2}{G} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)

Enrage — Whenever Cacophodon is dealt damage, untap target permanent.

Haste Feldon, Ronom Excavator can't block. Whenever Feldon is dealt damage, exile that many cards from the top of your library. Choose one of them. Until the end of your next turn, you may play that card.

Defender, flying Whenever Flumph is dealt damage, you and target opponent each draw a card.

When Forerunner of the Empire enters the battlefield, you may search your library for a Dinosaur card, reveal it, then shuffle and put that card on top. Whenever a Dinosaur enters the battlefield under your control, you may have Forerunner of the Empire deal 1 damage to each creature.

Enrage — Whenever Frilled Deathspitter is dealt damage, it deals 2 damage to target opponent or planeswalker.

Whenever Fungusaur is dealt damage, put a +1/+1 counter on it.

Flying Poison Breath — When Green Dragon enters the battlefield, until end of turn, whenever a creature an opponent controls is dealt damage, destroy it.

Flying {2}{R}: Harbinger of the Hunt deals 1 damage to each creature without flying. {2}{G}: Harbinger of the Hunt deals 1 damage to each other creature with flying.

Defender (This creature can't attack.) Whenever Hornet Nest is dealt damage, create that many 1/1 green Insect creature tokens with flying and deathtouch. (Any amount of damage a creature with deathtouch deals to a creature is enough to destroy it.)

Hungering Hydra enters the battlefield with X +1/+1 counters on it. Hungering Hydra can't be blocked by more than one creature. Whenever Hungering Hydra is dealt damage, put that many +1/+1 counters on it. (It must survive the damage to get the counters.)

Enrage — Whenever Imperial Ceratops is dealt damage, you gain 2 life.

Sacrifice an artifact: Krark-Clan Shaman deals 1 damage to each creature without flying.

{2}, Reveal X red cards from your hand, Sacrifice Martyr of Ashes: Martyr of Ashes deals X damage to each creature without flying.

Enrage — Whenever Needletooth Raptor is dealt damage, it deals 5 damage to target creature an opponent controls.

Enrage — Whenever Overgrown Armasaur is dealt damage, create a 1/1 green Saproling creature token.

Enrage — Whenever Ranging Raptors is dealt damage, you may search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

Enrage — Whenever Raptor Hatchling is dealt damage, create a 3/3 green Dinosaur creature token with trample.

Enrage — Whenever Ravenous Daggertooth is dealt damage, you gain 2 life.

Whenever Saber Ants is dealt damage, you may create that many 1/1 green Insect creature tokens.

Enrage — Whenever Siegehorn Ceratops is dealt damage, put two +1/+1 counters on it. (It must survive the damage to get the counters.)

Enrage — Whenever Silverclad Ferocidons is dealt damage, each opponent sacrifices a permanent.

Flash Enrage — Whenever Snapping Sailback is dealt damage, put a +1/+1 counter on it. (It must survive the damage to get the counter.)

Whenever Spitemare is dealt damage, it deals that much damage to any target.

Defender (This creature can't attack.) Whenever Sprouting Phytohydra is dealt damage, you may create a token that's a copy of Sprouting Phytohydra.

Echo {3}{R} (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 Subterranean Shambler enters or leaves the battlefield, it deals 1 damage to each creature without flying.

Protection from red {T}: Subterranean Spirit deals 1 damage to each creature without flying.

Enrage — Whenever Sun-Crowned Hunters is dealt damage, it deals 3 damage to target opponent or planeswalker.

Vigilance Enrage — Whenever Urban Daggertooth is dealt damage, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

{R}, Sacrifice a land: Magma Vein deals 1 damage to each creature without flying.

Kicker {R} (You may pay an additional {R} as you cast this spell.) Cinderclasm deals 1 damage to each creature. If it was kicked, it deals 2 damage to each creature instead.

Seismic Shudder deals 1 damage to each creature without flying.

Shake the Foundations deals 1 damage to each creature without flying. Draw a card.

Choose three. You may choose the same mode more than once. • Fiery Confluence deals 1 damage to each creature. • Fiery Confluence deals 2 damage to each opponent. • Destroy target artifact.

Choose one — • Hurly-Burly deals 1 damage to each creature without flying. • Hurly-Burly deals 1 damage to each creature with flying.

Rain of Embers deals 1 damage to each creature and each player.

Savage Twister deals X damage to each creature.

Tremor deals 1 damage to each creature without flying.

Underworld Fires deals 1 damage to each creature and each planeswalker. If a permanent dealt damage this way would die this turn, exile it instead.

Volcanic Spray deals 1 damage to each creature without flying and each player. Flashback {1}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom of your library in a random order.) Volcanic Torrent deals X damage to each creature and planeswalker your opponents control, where X is the number of spells you've cast this turn.