Whenever a creature dies, tap all untapped creatures that share a creature type with it or untap all tapped creatures that share a creature type with it.

Target player sacrifices half the permanents they control of their choice, rounded down.
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.)
At the beginning of each player's upkeep, if this card is suspended, that player may sacrifice a permanent of their choice. If the player does, put two time counters on this card.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)
If a source you control would deal damage to a permanent or player, it deals triple that damage instead.

Mountainwalk (This creature can't be blocked as long as defending player controls a Mountain.)

You may play an additional land on each of your turns.
Whenever you cast a spell, draw two cards.
At the beginning of your end step, discard your hand.

If one or more +1/+1 counters would be put on a creature you control, twice that many +1/+1 counters are put on that creature instead.

Whenever you cast an instant or sorcery spell, you may pay . If you do, copy that spell. You may choose new targets for the copy.
Whenever another nontoken creature you control enters, you may pay . If you do, create a token that's a copy of that creature.

, , Untap a tapped creature you control: Create a 1/1 green and white Citizen creature token.
, , Untap two tapped creatures you control: Draw a card.
, , Untap fifteen tapped creatures you control: You win the game.

When this creature enters, you may return target card from your graveyard to your hand.

Exile two target artifacts.

As this creature enters, choose a creature type.
This creature is the chosen type in addition to its other types.
Whenever this creature enters or attacks, you may draw a card for each other creature you control that shares a creature type with it. If you do, discard a card.

Each player may put an artifact, creature, enchantment, or land card from their hand onto the battlefield.

Whenever a creature enters, destroy all other creatures that share a color with it. They can't be regenerated.

This creature can't block.
This creature has haste as long as an opponent has 10 or less life.
Landfall — Whenever a land you control enters, you may return this card from your graveyard to the battlefield.

, Sacrifice three artifacts: Search your library for an artifact card, put it onto the battlefield, then shuffle.

Sacrifice this creature: Another target creature you control gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)

: Add .

, Sacrifice this creature: Target green creature gets +1/+0 and gains first strike until end of turn.

At the beginning of your end step, if you gained 3 or more life this turn, create a 3/3 white Angel creature token with flying.
, , Exile The Book of Exalted Deeds: Put an enlightened counter on target Angel. It gains "You can't lose the game and your opponents can't win the game." Activate only as a sorcery.

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