Activated abilities of creatures can't be activated.

Destroy target land.

Menace
Whenever this creature attacks, each opponent loses X life and you gain X life, where X is the number of other Squirrels, Bats, Lizards, and Rats you control.

Flying
When this creature enters, destroy target nonbasic land an opponent controls. Its controller searches their library for a basic land card, puts it onto the battlefield tapped with a stun counter on it, then shuffles. (If a permanent with a stun counter would become untapped, remove one from it instead.)

Impending 4— (If you cast this spell for its impending cost, it enters with four time counters and isn't a creature until the last is removed. At the beginning of your end step, remove a time counter from it.)
Whenever this permanent enters or attacks, it deals 4 damage to any target.

Whenever you tap a Forest for mana, add an additional .
+1: Put three +1/+1 counters on up to one target noncreature land you control. Untap it. It becomes a 0/0 Elemental creature with vigilance and haste that's still a land.
−8: You get an emblem with "Lands you control have indestructible." Search your library for any number of Forest cards, put them onto the battlefield tapped, then shuffle.

Enchant land
Whenever enchanted land is tapped for mana, its controller adds an additional one mana of any color.

Juggernauts you control attack each combat if able.
Juggernauts you control can't be blocked by Walls.
Other creatures you control have base power and toughness 5/3 and are Juggernauts in addition to their other creature types.

This creature enters with X +1/+1 counters on it.
: Put a +1/+1 counter on this creature. Any player may activate this ability.

Exile all the cards from your hand, then draw that many cards. Until the end of your next turn, you may play cards exiled this way.

You may play Forests from your graveyard.
Whenever a Forest you control enters, create a 5/3 green Elemental creature token.
Whenever an Elemental you control dies, you may mill three cards.

Menace, deathtouch
When this creature enters, each player loses a third of their life, rounded up.

, : Roll a d4 and create a number of Treasure tokens equal to the result. The player to your right gains control of this artifact.

Vigilance, lifelink
, Pay 7 life: Destroy target nonland permanent. Activate only during your turn.

Whenever a creature is exiled from the battlefield, put a +1/+1 counter on this creature.
At the beginning of your end step, you may exile another target creature you control, then return that card to the battlefield under its owner's control.

Counter target spell.

Polukranos enters with six +1/+1 counters on it. It escapes with twelve +1/+1 counters on it instead.
If damage would be dealt to Polukranos while it has a +1/+1 counter on it, prevent that damage and remove that many +1/+1 counters from it.
: Polukranos fights another target creature.
Escape—, Exile six other cards from your graveyard.

Turn target creature face down. It's a 2/2 Cyberman artifact creature.

Companion — No card in your starting deck has more than one of the same mana symbol in its mana cost. (If this card is your chosen companion, you may put it into your hand from outside the game for as a sorcery.)
: Add . This mana can't be spent to pay generic mana costs.

Whenever Slimefoot and Squee enters or attacks, create a 1/1 green Saproling creature token.
, Sacrifice a Saproling: Return this card and up to one other target creature card from your graveyard to the battlefield. Activate only as a sorcery.