Trample, haste
Alliance — Whenever another creature you control enters, double this creature's power until end of turn.

Flying
When this creature enters, you get (three energy counters).
Whenever this creature attacks, you may pay . If you do, put a +1/+1 counter on it.

Flash
As an additional cost to cast this spell, behold a Kithkin and exile it. (Exile a Kithkin you control or a Kithkin card from your hand.)
Other Kithkin you control get +1/+1.
When this creature leaves the battlefield, return the exiled card to its owner's hand.

When this creature enters, you may discard a card. If you do, draw a card.
Unearth (: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

(: Add .)

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.)