Target creature gets +2/+2 and gains flying until end of turn.

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.

Increment (Whenever you cast a spell, if the amount of mana you spent is greater than this creature's power or toughness, put a +1/+1 counter on this creature.)
At the beginning of combat on your turn, you may pay . When you do, move X +1/+1 counters from this creature onto another target creature.

Return target creature card from your graveyard to the battlefield. Then if it isn't your main phase, blight 2. (Put two -1/-1 counters on a creature you control.)

Flying (This creature can't be blocked except by creatures with flying or reach.)
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.)

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.)

This creature can't be blocked.
This creature doesn't untap during your untap step if an opponent controls two or more creatures.

Landfall — Whenever a land you control enters, put a +1/+1 counter on this creature. It gains flying until end of turn.

Enchant creature
Enchanted creature gets +2/+2 and has mountainwalk. (It can't be blocked as long as defending player controls a Mountain.)

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.)

: Put a +1/+1 counter on this creature.

Whenever this creature attacks and isn't blocked, you may sacrifice it. If you do, defending player discards three cards.

Search your library for a basic land card, put it onto the battlefield, then shuffle.
Suspend 2— (Rather than cast this card from your hand, you may pay and exile it with two time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, you may cast it without paying its mana cost.)

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

: This creature deals 1 damage to target creature blocking it.

When this creature enters, if it's on the battlefield, it deals damage equal to its power to target creature an opponent controls and that creature deals damage equal to its power to this creature.
: Return this creature to its owner's hand. Activate only as a sorcery. ( can be paid with one mana from a snow source.)

Flying
When this creature enters, you gain 1 life and draw a card.