Whenever another Elf enters, put a +1/+1 counter on this creature.

As long as you've lost life this turn, this creature has flying and vigilance.
Whenever you gain life, put a +1/+1 counter on this creature.
When this creature dies, put its counters on target creature you control.

As an additional cost to cast this spell, sacrifice half the lands you control, rounded up.
Hexproof
Lands you control have ": Add three mana of any one color."

Counter target instant or sorcery spell. Search its controller's graveyard, hand, and library for all cards with the same name as that spell and exile them. Then that player shuffles.

At the beginning of your upkeep, look at the top card of your library. If it's a land card, you may put it onto the battlefield.

(: Add .)

Double the power of each creature you control until end of turn.

Trample
When this creature enters, if it isn't a token, create two tokens that are copies of it.
When this creature dies, put a number of +1/+1 counters equal to its power on each creature you control named Gruff Triplets.

Companion — Your starting deck contains at least twenty cards more than the minimum deck size. (If this card is your chosen companion, you may put it into your hand from outside the game for as a sorcery.)
Flying
When Yorion enters, exile any number of other nonland permanents you own and control. Return those cards to the battlefield at the beginning of the next end step.

All Sliver creatures have ": This creature deals 2 damage to any target and 3 damage to itself."

Whenever this creature attacks, it deals 1 damage to any target.

Return all artifact cards from your graveyard to the battlefield. They gain haste until end of turn.

Whenever another Zombie you control enters, put a +1/+1 counter on this creature.

Anger of the Gods deals 3 damage to each creature. If a creature dealt damage this way would die this turn, exile it instead.

This land enters tapped.
: Add or .
: Until end of turn, this land becomes a 2/2 black and red Elemental creature with ": This creature gets +X/+0 until end of turn." It's still a land.

All artifacts have "At the beginning of your upkeep, sacrifice this artifact unless you pay ."

Destroy target creature. It can't be regenerated.

This land enters tapped unless you control a Mountain or a Plains.
: Add or .

, : Search your library for a basic land card, reveal it, put it into your hand, then shuffle.
At the beginning of your end step, if you control seven or more lands, transform this artifact.

Flying, trample
Start your engines! (If you have no speed, it starts at 1. It increases once on each of your turns when an opponent loses life. Max speed is 4.)
At the beginning of your end step, you draw X cards and lose X life, where X is your speed.