Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)

Defender, reach

Channel — , Discard Bamboo Grove Archer: Destroy target creature with flying.

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

: Regenerate Blight Mamba.

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

Whenever Broodbirth Viper deals combat damage to a player, you may draw a card.

Whenever an Aura or Equipment enters the battlefield under your control, create a 2/2 red Spirit creature token with menace.

At the beginning of your end step, put a +1/+1 counter on each modified creature you control. (Equipment, Auras you control, and counters are modifications.)

When Coiling Oracle enters the battlefield, reveal the top card of your library. If it's a land card, put it onto the battlefield. Otherwise, put that card into your hand.

Whenever Crypt Cobra attacks and isn't blocked, defending player gets a poison counter. <I>(A player with ten or more poison counters loses the game.)</I>

Dread Linnorm can't be blocked by creatures with power 3 or less.

: Put a +1/+2 counter on CARDNAME. ( is paid with one mana from any source that could produce two or more colors of mana.)

Reach (This creature can block creatures with flying.)

This spell costs less to cast if there are no land cards in your hand.

When Forceful Cultivator enters the battlefield, search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Lifelink

When Gravebreaker Lamia enters the battlefield, search your library for a card, put it into your graveyard, then shuffle.

Spells you cast from your graveyard cost less to cast.

Heir of the Ancient Fang enters the battlefield with a +1/+1 counter on it if you control a modified creature. (Equipment, Auras you control, and counters are modifications.)

Trample

Embalm (, Exile this card from your graveyard: Create a token that's a copy of it, except it's a white Zombie Snake Hydra with no mana cost. Embalm only as a sorcery.)

Hooded Hydra enters the battlefield with X +1/+1 counters on it.

When Hooded Hydra dies, create a 1/1 green Snake creature token for each +1/+1 counter on it.

Morph

As Hooded Hydra is turned face up, put five +1/+1 counters on it.

Flash

Flying

When Ice-Fang Coatl enters the battlefield, draw a card.

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

Ninjutsu (, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)

Whenever Jukai Liberator deals combat damage to a player, choose land or nonland. Seek a permanent card of the chosen kind.

Legendary Snakes you control have shroud. (They can't be the targets of spells or abilities.)

Whenever Kashi-Tribe Elite deals combat damage to a creature, tap that creature and it doesn't untap during its controller's next untap step.

Whenever Kashi-Tribe Warriors deals combat damage to a creature, tap that creature and it doesn't untap during its controller's next untap step.

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)

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

Evolve (Whenever a creature enters the battlefield under your control, if that creature has greater power or toughness than this creature, put a +1/+1 counter on this creature.)

Whenever one or more +1/+1 counters are put on Lonis, investigate that many times.

Whenever you sacrifice a Clue, put a +1/+1 counter on another target creature you control.

Landfall — Whenever a land enters the battlefield under your control, add one mana of any color.

Whenever Marsh Viper deals damage to a player, that player gets two poison counters. (A player with ten or more poison counters loses the game.)

: Target creature blocks Matsu-Tribe Decoy this turn if able.

Whenever Matsu-Tribe Decoy deals combat damage to a creature, tap that creature and it doesn't untap during its controller's next untap step.

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)

: Regenerate Mire Boa. (The next time this creature would be destroyed, instead tap it, remove it from combat, and heal all damage on it.)

Deathtouch

Whenever Nafs Asp deals damage to a player, that player loses 1 life at the beginning of their next draw step unless they pay before that draw step.

This spell costs less to cast for each creature card in your graveyard.

: Monstrosity 5. This ability costs less to activate for each creature card in your graveyard. (If this creature isn't monstrous, put five +1/+1 counters on it and it becomes monstrous.)

Reach

Discard a card: Noose Constrictor gets +1/+1 until end of turn.

Whenever Ohran Viper deals combat damage to a creature, destroy that creature at end of combat.

Whenever Ohran Viper deals combat damage to a player, you may draw a card.

, : Create a 1/1 green Snake creature token. If you control ten or more creatures, flip Orochi Eggwatcher.

: Add .

As long as Orochi Merge-Keeper is modified, it has ": Add ." (Equipment, Auras you control, and counters are modifications.)

Ninjutsu (, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)

Whenever one or more creatures you control deal combat damage to a player, create a Treasure token and manifest the top card of that player's library. (Put it onto the battlefield face down as a 2/2 creature. Turn it face up any time for its mana cost if it's a creature card.)

Flying

When Patagia Viper enters the battlefield, create two 1/1 green and blue Snake creature tokens.

When Patagia Viper enters the battlefield, sacrifice it unless was spent to cast it.

This spell can't be countered.

Creature spells you control can't be countered.

Vigilance, reach, trample

Ramunap Hydra gets +1/+1 as long as you control a Desert.

Ramunap Hydra gets +1/+1 as long as there is a Desert card in your graveyard.

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

: Regenerate River Boa.

Whenever Sabertooth Cobra deals damage to a player, that player gets a poison counter. The player gets another poison counter at the beginning of their next upkeep unless they pay before that step. (A player with ten or more poison counters loses the game.)

Whenever a creature you control deals combat damage to a player, add that much . Until end of turn, you don't lose this mana as steps and phases end.

: You may put a land card from your hand onto the battlefield.

Reveal your hand: If you have seven or more land cards in your hand, flip Sasaya, Orochi Ascendant.

Whenever an opponent casts a spell with mana value 3 or less, Scalding Viper deals 1 damage to that player.

When Serpent Assassin enters the battlefield, you may destroy target nonblack creature.

Other Snake creatures you control get +2/+2.

Whenever a Snake you control deals combat damage to a player, you may draw a card.

, Sacrifice a creature: Target creature gets +3/+3 until end of turn.

At the beginning of your upkeep, sacrifice a Snake.

Whenever Shisato, Whispering Hunter deals combat damage to a player, that player skips their next untap step.

, Sacrifice another creature or an artifact: For each opponent, you mill a card, then return that card from your graveyard to your hand unless that player pays 3 life. (To mill a card, put the top card of your library into your graveyard.)

Choose a Background (You can have a Background as a second commander.)

Deathtouch

When Skullwinder enters the battlefield, return target card from your graveyard to your hand, then choose an opponent. That player returns a card from their graveyard to their hand.

Other Snake creatures you control get +1/+0.

Whenever a Warrior you control deals combat damage to a creature, destroy that creature at end of combat.

Flying

Ascend (If you control ten or more permanents, you get the city's blessing for the rest of the game.)

Spire Winder gets +1/+1 as long as you have the city's blessing.