Cast this spell only during the declare blockers step.

Attacking creatures become blocked. (This spell works on creatures that can't be blocked.)

Cast this spell only during the declare attackers step and only if you've been attacked this step.

Prevent all damage that would be dealt to you this turn by attacking creatures.

Cast this spell only during the declare attackers step and only if you've been attacked this step.

Prevent all damage that would be dealt to you this turn by attacking creatures.

Cast this spell only during the declare attackers step and only if you've been attacked this step.

Creatures you control gain reach until end of turn. (They can block creatures with flying.)

Cast this spell only before the combat damage step.

Target creature gains trample and gets +X/+0 until end of turn, where X is its power. At the beginning of the next end step, destroy that creature if it attacked this turn.

Tap X target creatures. Winter Blast deals 2 damage to each of those creatures with flying.

Sandstorm deals 1 damage to each attacking creature.

Cast this spell only during your declare attackers step.

This turn, instead of declaring blockers, each defending player chooses any number of creatures they control and divides them into a number of piles equal to the number of attacking creatures for whom that player is the defending player. Creatures those players control that can block additional creatures may likewise be put into additional piles. Assign each pile to a different one of those attacking creatures at random. Each creature in a pile that can block the creature that pile is assigned to does so. (Piles can be empty.)

Strive — This spell costs more to cast for each target beyond the first.

Choose any number of target creatures. Put a +1/+1 counter on each of them.

Choose target creature you control and target creature you don't control. If you cast this spell during your main phase, the creature you control gets +1/+1 until end of turn. Then those creatures fight each other. (Each deals damage equal to its power to the other.)

Strive — This spell costs more to cast for each target beyond the first.

Choose any number of target creatures. Double the number of +1/+1 counters on each of them.

Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.)

Untap target creature. Until end of turn, it gains hexproof, reach, and "Whenever this creature becomes tapped, it deals damage equal to its power to up to one target creature."

Target creature gets +2/+2 until end of turn. If you cast this spell during your main phase, that creature gets +4/+4 until end of turn instead.

Kicker (You may pay an additional as you cast this spell.)

Target creature gains trample until end of turn. Whenever that creature deals combat damage this turn, if this spell was kicked, you gain life equal to that damage.

Until end of turn, up to two target creatures you control each gain "Whenever this creature deals combat damage to a player, draw a card."

Multikicker (You may pay an additional any number of times as you cast this spell.)

Choose target creature, then choose another target creature for each time this spell was kicked. Put X +1/+1 counters on each of them.

Prevent all combat damage that would be dealt this turn.

Each attacking creature doesn't untap during its controller's next untap step.

Prevent all combat damage X target creatures would deal this turn.