Whenever you cast a creature spell, you may pay . If you do, return target creature to its owner's hand.

For each creature, its controller sacrifices a permanent unless they pay .

Each creature you control can't be blocked by more than one creature.

Target player skips their next draw step.

: Put a -1/-1 counter on target creature.

Enchant creature you control
Enchanted creature has ": This creature deals 1 damage to any target."
Sacrifice Fire Whip: Fire Whip deals 1 damage to any target.

Firespout deals 3 damage to each creature without flying if was spent to cast this spell and 3 damage to each creature with flying if was spent to cast this spell. (Do both if was spent.)

As an additional cost to cast this spell, discard X cards.
Firestorm deals X damage to each of X targets.

Defender (This creature can't attack.)
When Floodgate has flying, sacrifice it.
When Floodgate leaves the battlefield, it deals damage equal to half the number of Islands you control, rounded down, to each nonblue creature without flying.

Enchant land
Enchanted land has ": Prevent the next 1 damage that would be dealt to any target this turn."

Defender (This creature can't attack.)
: Flowstone Wall gets +1/-1 until end of turn.

Flying
: Regenerate Fog of Gnats.

Artifacts and enchantments you control have shroud. (They can't be the targets of spells or abilities.)

Draw two cards, then discard two cards. Untap up to three lands.

: Target creature can't be regenerated this turn.

Haste
: Furnace Spirit gets +1/+0 until end of turn.

If target player has exactly 10 life, Hidetsugu's Second Rite deals 10 damage to that player.

Whenever Hollow Dogs attacks, it gets +2/+0 until end of turn.

The next time a source of your choice would deal damage to any target this turn, prevent that damage. If damage from a red source is prevented this way, Honorable Passage deals that much damage to the source's controller.