Create two 1/1 green Elf Warrior creature tokens. Clash with an opponent. If you win, those creatures gain deathtouch until end of turn. (Each clashing player reveals the top card of their library, then puts that card on their choice of the top or bottom. A player wins if their card had a greater mana value. Any amount of damage a creature with deathtouch deals to a creature is enough to destroy it.)

: Target land you control becomes the basic land type of your choice until end of turn.

Flying, haste

You may exert this creature as it attacks. When you do, it gets +1/+1 and gains flying until end of turn. (An exerted creature won't untap during your next untap step.)

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for .)
Draw three cards.

Target creature gets +2/+2 until end of turn.

This land enters tapped.
: Add .
: This land becomes a 3/3 green Ape creature with trample until end of turn. It's still a land. (It can deal excess combat damage to the player or planeswalker it's attacking.)

(: Add .)

(: Add .)

Flash
When this creature enters, untap each other Merfolk you control.
As long as you attacked with three or more Merfolk this turn, Merfolk you control get +1/+0.

: Target attacking creature gets +1/+1 until end of turn.

First strike
This creature attacks each combat if able.

As an additional cost to cast this spell, discard a card.
Protection from planeswalkers
: This creature deals 1 damage to target planeswalker.
: This creature gains indestructible until end of turn.

Whenever this creature attacks and isn't blocked, you may draw a card. If you do, this creature assigns no combat damage this turn.

Until end of turn, target creature you control has base power and toughness 4/4 and gains flying and hexproof. (It can't be the target of spells or abilities your opponents control.)

, Discard a card: You gain 3 life.

, Discard a card: Tap target creature.

When this enchantment enters, return a red or green enchantment you control to its owner's hand.
Lands you control are 2/2 creatures with first strike. They're still lands.

Flying, first strike
When this creature enters, destroy up to one target nonbasic land. Its controller may search their library for a basic land card, put it onto the battlefield tapped, then shuffle.

Flying
: Return this card from your graveyard to your hand.