Prevent all combat damage that would be dealt this turn if {W} was spent to cast this spell. Each player loses 1 life for each attacking creature they control if {B} was spent to cast this spell. (Do both if {W}{B} was spent.)

Regenerate target creature. You gain control of that creature if it regenerates this way.

If a source would deal 4 or more damage to a permanent or player, that source deals 3 damage to that permanent or player instead.

Cumulative upkeep {1} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.) Black creatures can't attack you. Nonblack creatures can't attack you unless their controller pays {2} for each creature they control that's attacking you.

Cast this spell only during your turn. Take an extra turn after this one if an opponent cast a blue spell this turn.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) At the beginning of each end step, if you created a token this turn, draw a card.

Whenever a land card is put into your graveyard from your library, you may pay {1}. If you do, draw a card.

When a player casts a spell, sacrifice this enchantment. If you do, each of that player's opponents draws three cards.

Skip your draw step. {1}, Tap two untapped creatures you control: Draw a card.

{B}{B}: Target creature gains shadow until end of turn. (It can block or be blocked by only creatures with shadow.)

Destroy all enchantments or all nonwhite enchantments.

When this enchantment enters, destroy each permanent with the same name as another permanent, except for basic lands. They can't be regenerated. Whenever a permanent other than a basic land enters, destroy all other permanents with that name. They can't be regenerated.

For each creature, its controller sacrifices a permanent of their choice unless they pay {1}.

Cast this spell only after combat. Gain control of target nonartifact, nonblack creature that attacked you this turn and put a -1/-0 counter on it.

Destroy each artifact with mana value X or less.

First strike (This creature deals combat damage before creatures without first strike.) At the beginning of your upkeep, sacrifice this creature unless you discard a card. At the beginning of your draw step, you may have this creature deal 3 damage to target creature.

{T}: Destroy target artifact or creature. That permanent's controller gains control of Starke. (This effect lasts indefinitely.)

Cumulative upkeep {G} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.) {2}{G}, Pay 3 life for each velocity counter on this enchantment: Destroy target permanent and put a velocity counter on this enchantment. Activate only once each turn.

Choose a number. Destroy all artifacts and creatures with mana value equal to that number. Then target player reveals their hand and discards all nonland cards with mana value equal to the number.

Cumulative upkeep {1} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.) At the beginning of your draw step, destroy each creature with mana value equal to the number of age counters on this enchantment. They can't be regenerated.