You may play an additional land on each of your turns.

Landfall — Whenever a land enters the battlefield under your control, you may draw a card.

Defender

When Biolume Egg enters the battlefield, scry 2.

When you sacrifice Biolume Egg, return it to the battlefield transformed under its owner's control at the beginning of the next end step.

When Bladecoil Serpent enters the battlefield, for each spent to cast it, draw a card.

When Bladecoil Serpent enters the battlefield, for each spent to cast it, each opponent discards a card.

When Bladecoil Serpent enters the battlefield, for each spent to cast it, it gets +1/+0 and gains trample and haste until end of turn.

Noncreature spells you cast have convoke. (Your creatures can help cast those spells. Each creature you tap while casting a noncreature spell pays for or one mana of that creature's color.)

At the beginning of your end step, untap up to four target creatures.

This spell costs less to cast for each instant and sorcery card in your graveyard.

Deep-Sea Terror can't attack unless there are seven or more cards in your graveyard.

Defender

Megamorph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its megamorph cost and put a +1/+1 counter on it.)

Floodtide Serpent can't attack unless you return an enchantment you control to its owner's hand. (This cost is paid as attackers are declared.)

This spell costs less to cast for each artifact you control.

: Gearseeker Serpent can't be blocked this turn.

Affinity for tokens (This spell costs less to cast for each token you control.)

Whenever a token enters the battlefield under your control, tap target nonland permanent an opponent controls. It doesn't untap during its controller's next untap step.

Kukemssa Serpent can't attack unless defending player controls an Island.

, Sacrifice an Island: Target land an opponent controls becomes an Island until end of turn.

When you control no Islands, sacrifice Kukemssa Serpent.

Trample, haste

Lightning Serpent enters the battlefield with X +1/+0 counters on it.

At the beginning of the end step, sacrifice Lightning Serpent.

Marjhan doesn't untap during your untap step.

, Sacrifice a creature: Untap Marjhan. Activate only during your upkeep.

Marjhan can't attack unless defending player controls an Island.

: Marjhan gets -1/-0 until end of turn and deals 1 damage to target attacking creature without flying.

When you control no Islands, sacrifice Marjhan.

Ronom Serpent can't attack unless defending player controls a snow land.

When you control no snow lands, sacrifice Ronom Serpent.

Scrapdiver Serpent can't be blocked as long as defending player controls an artifact.

Sea Serpent can't attack unless defending player controls an Island.

When you control no Islands, sacrifice Sea Serpent.

Krakens, Leviathans, Octopuses, and Serpents you control can't be blocked except by Krakens, Leviathans, Octopuses, and Serpents.

Whenever Shrouded Serpent attacks, defending player may pay . If that player doesn't, Shrouded Serpent can't be blocked this turn.

Slipstream Serpent can't attack unless defending player controls an Island.

When you control no Islands, sacrifice Slipstream Serpent.

Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

Defender

Metalcraft — As long as you control three or more artifacts, Spire Serpent gets +2/+2 and can attack as though it didn't have defender.

Hexproof (This creature can't be the target of spells or abilities your opponents control.)

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

Trample

Phasing (This phases in or out before you untap during each of your untap steps. While it's phased out, it's treated as though it doesn't exist.)

At the beginning of your upkeep, all lands you control phase out. (They phase in before you untap during your next untap step.)

This spell costs less to cast for each instant and sorcery card in your graveyard.

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

Kicker <I>(You may pay an additional </I><I> as you cast this spell.)</I>

Vodalian Serpent can't attack unless defending player controls an Island.

If Vodalian Serpent was kicked, it enters the battlefield with four +1/+1 counters on it.

Whenever Xolatoyac, the Smiling Flood enters the battlefield or attacks, put a flood counter on target land. That land is an Island in addition to its other types for as long as it has a flood counter on it.

At the beginning of your end step, untap each permanent you control with a counter on it.