Choose target creature. Whenever that creature is dealt damage this turn, it deals that much damage to each other creature and each player.
{2}{R}{R}
Chain Reaction
Sorcery
Chain Reaction deals X damage to each creature, where X is the number of creatures on the battlefield.
{5}{W}
Channel Harm
Instant
Prevent all damage that would be dealt to you and permanents you control this turn by sources you don't control. If damage is prevented this way, you may have Channel Harm deal that much damage to target creature.
{4}{R}
Cleaver Riot
Sorcery
Creatures you control gain double strike until end of turn. (They deal both first-strike and regular combat damage.)
{2}{W}{W}
Divine Reckoning
Sorcery
Each player chooses a creature they control. Destroy the rest.
Flashback {5}{W}{W} (You may cast this card from your graveyard for its flashback cost. Then exile it.)
{2}{W}{W}{ // }{3}{W}{W}
Dusk // Dawn
Sorcery // Sorcery
Destroy all creatures with power 3 or greater.
Aftermath (Cast this spell only from your graveyard. Then exile it.)
Return all creature cards with power 2 or less from your graveyard to your hand.
{U}{U}
Mana Drain
Instant
Counter target spell. At the beginning of your next main phase, add an amount of {C} equal to that spell's mana value.
{2}{U}
Shu Yun, the Silent Tempest
Legendary Creature - Human Monk
Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)
Whenever you cast a noncreature spell, you may pay {R/W}{R/W}. If you do, target creature gains double strike until end of turn.
3 /
2
{2}{W}{W}
Sublime Archangel
Creature - Angel
Flying
Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.)
Other creatures you control have exalted. (If a creature has multiple instances of exalted, each triggers separately.)