As long as Gaea’s Liege isn’t attacking, its power and toughness are each equal to the number of Forests you control. As long as Gaea’s Liege is attacking, its power and toughness are each equal to the number of Forests defending player controls.

{T}: Target land becomes a Forest until Gaea’s Liege leaves the battlefield.

Gemstone Mine enters the battlefield with three mining counters on it.

{T}, Remove a mining counter from Gemstone Mine: Add one mana of any color. If there are no mining counters on Gemstone Mine, sacrifice it.

Flying

{U}{U}{U}: Regenerate Ghost Ship.

You may choose not to untap Giant Oyster during your untap step.

{T}: For as long as Giant Oyster remains tapped, target tapped creature doesn’t untap during its controller’s untap step, and at the beginning of each of your draw steps, put a -1/-1 counter on that creature. When Giant Oyster leaves the battlefield or becomes untapped, remove all -1/-1 counters from the creature.

Whenever Goblin Snowman blocks, prevent all combat damage that would be dealt to and dealt by it this turn.

{T}: Goblin Snowman deals 1 damage to target creature it’s blocking.

{2}, {T}, Sacrifice Grinning Totem: Search target opponent’s library for a card and exile it. Then that player shuffles. Until the beginning of your next upkeep, you may play that card. At the beginning of your next upkeep, if you haven’t played it, put it into its owner’s graveyard.

Hail Storm deals 2 damage to each attacking creature and 1 damage to you and each creature you control.

The next time a source of your choice would deal damage to any target this turn, prevent that damage. If damage from a red source is prevented this way, Honorable Passage deals that much damage to the source’s controller.

Echo {2}{G} (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 Hunting Moa enters the battlefield or dies, put a +1/+1 counter on target creature.

Icatian Javelineers enters the battlefield with a javelin counter on it.

{T}, Remove a javelin counter from Icatian Javelineers: It deals 1 damage to any target.

{2}{G}, {T}, Discard two cards: All lands target player controls become 3/3 creatures until end of turn. They’re still lands.

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

At the beginning of your upkeep, sacrifice Krosan Cloudscraper unless you pay {G}{G}.

Morph {7}{G}{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.)

Trample

Leviathan enters the battlefield tapped and doesn’t untap during your untap step.

At the beginning of your upkeep, you may sacrifice two Islands. If you do, untap Leviathan.

Leviathan can’t attack unless you sacrifice two Islands. (This cost is paid as attackers are declared.)

Flying, vigilance, haste

Other Merfolk get +1/+1 and have islandwalk. (They can’t be blocked as long as defending player controls an Island.)

{T}: Destroy target creature with islandwalk.

Merieke Ri Berit doesn’t untap during your untap step.

{T}: Gain control of target creature for as long as you control Merieke Ri Berit. When Merieke Ri Berit leaves the battlefield or becomes untapped, destroy that creature. It can’t be regenerated.

Mindless Automaton enters the battlefield with two +1/+1 counters on it.

{1}, Discard a card: Put a +1/+1 counter on Mindless Automaton.

Remove two +1/+1 counters from Mindless Automaton: Draw a card.