This creature enters with four +1/+1 counters on it.
, Remove a +1/+1 counter from this creature: Put a +1/+1 counter on target creature.

Devour 1 (As this creature enters, you may sacrifice any number of creatures. It enters with that many +1/+1 counters on it.)
When this creature enters, draw a card for each creature it devoured.

Trample
When this creature enters, it deals 1 damage to each other creature.

When this creature enters, destroy target artifact or enchantment an opponent controls.

Protection from red
Tap five untapped Goblins you control: This creature deals 10 damage to each creature and each player.

Prophetic Bolt deals 4 damage to any target. Look at the top four cards of your library. Put one of those cards into your hand and the rest on the bottom of your library in any order.

When this creature enters, you may return target artifact to its owner's hand.

Landfall — Whenever a land you control enters, this creature gets +2/+2 until end of turn.

Flash (You may cast this spell any time you could cast an instant.)
Flying

Trample
Madness (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Destroy target land. Its controller loses 2 life.

Alchemist's Greeting deals 4 damage to target creature.
Madness (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

First strike
: Add an amount of equal to the greatest power among creatures you control that entered this turn.
Partner (You can have two commanders if both have partner.)

Target creature you control deals damage equal to its power to each other creature and each opponent.

After the second main phase this turn, there's an additional combat phase followed by an additional main phase. At the beginning of that combat, untap all creatures that attacked this turn.
Rebound (If you cast this spell from your hand, exile it as it resolves. At the beginning of your next upkeep, you may cast this card from exile without paying its mana cost.)

Changeling (This card is every creature type.)
Champion a creature (When this enters, sacrifice it unless you exile another creature you control. When this leaves the battlefield, that card returns to the battlefield.)

Flying
When this creature dies, target opponent puts a card from their hand on top of their library.

+1: Look at the top four cards of your library. You may reveal a creature or land card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.
−3: Destroy target artifact, enchantment, or creature with flying.
−8: You get an emblem with "Creatures you control get +2/+2 and have vigilance, trample, and indestructible."

Menace

Flash
Whenever a creature you control dies, each opponent sacrifices a creature of their choice.

Flying
Other creatures you control with flying get +1/+0.

Whenever you cast a green creature spell, you may search your library for a creature card, reveal it, then shuffle and put that card on top.
Whenever you cast a blue creature spell, reveal the top card of your library. If it's a creature card, put that card into your hand.

Flying
When this creature enters, it deals 5 damage to target opponent unless that player sacrifices a creature of their choice.

Reach
When this creature enters, look at the top five cards of your library. You may reveal a creature or enchantment card from among them and put it into your hand. Put the rest on the bottom of your library in a random order. If you didn't put a card into your hand this way, you gain 4 life.

Cast this spell only during your end step.
As an additional cost to cast this spell, pay X life.
Draw X cards.

Flying
Cycling (, Discard this card: Draw a card.)

Flying, vigilance

Whenever a creature you control enters, it gets +2/+0 and gains haste until end of turn.

Whenever you cast a Druid spell, you may draw a card.
Tap seven untapped Druids you control: Gain control of all lands target player controls.

Trample
Madness (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

When this creature dies, you may search your library for up to three Forest cards, put them onto the battlefield tapped, then shuffle.

Domain — For each basic land type among lands you control, this creature has landwalk of that type. (It can't be blocked as long as defending player controls a land of that type.)

Mutate (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)
Flying
Whenever this creature mutates, draw a card.

If you would lose the game, instead shuffle your hand, your graveyard, and all permanents you own into your library, then draw seven cards and your life total becomes 20.