Duel Decks: Merfolk vs. Goblins

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. If you control a Merfolk, draw a card.

Flying Battle Squadron's power and toughness are each equal to the number of creatures you control.

T: Add C. 5U, T, Sacrifice this land: Draw two cards.

T: Add C. 4R, T, Sacrifice this land: It deals 2 damage to any target.

Menace (This creature can't be blocked except by two or more creatures.)

4, T, Exile this artifact: Exile target creature.

Target creature gets +3/+1 and gains trample until end of turn. (It can deal excess combat damage to the player or planeswalker it's attacking.)

Enchant creature When this Aura enters, tap enchanted creature. Enchanted creature doesn't untap during its controller's untap step.

Creatures you control gain double strike until end of turn. (They deal both first-strike and regular combat damage.)

Islandwalk (This creature can't be blocked as long as defending player controls an Island.) Whenever this creature deals combat damage to a player, you may draw that many cards.

Draw three cards.

1, Sacrifice this creature: It deals 2 damage to any target.

Return to their owners' hands all creatures with toughness less than or equal to the number of Islands you control.

Counter target creature spell.

This land enters tapped. T: Add R. Cycling R (R, Discard this card: Draw a card.)

Whenever another red creature you control enters, this creature gets +1/+0 until end of turn.

Cycling 1R (1R, Discard this card: Draw a card.) When you cycle this card, you may have it deal X damage to target creature, where X is the number of Goblins on the battlefield.

Ghostfire is colorless. Ghostfire deals 3 damage to any target.

3, T: Reveal cards from the top of your library until you reveal a land card. This artifact deals damage equal to the number of nonland cards revealed this way to any target. If the revealed land card was a Mountain, this artifact deals double that damage instead. Put the revealed cards on the bottom of your library in any order.

Haste (This creature can attack and T as soon as it comes under your control.) Other Goblin creatures you control get +1/+1 and have haste.

T: Each creature attacks this turn if able.

Renown 1 (When this creature deals combat damage to a player, if it isn't renowned, put a +1/+1 counter on it and it becomes renowned.) As long as this creature is renowned, it has menace. (It can't be blocked except by two or more creatures.)

This creature can't attack unless you control more creatures than defending player. This creature can't block unless you control more creatures than attacking player.

As an additional cost to cast this spell, sacrifice a Goblin. Goblin Grenade deals 5 damage to any target.