Whenever you’re dealt damage, you may create that many 1/1 white Soldier creature tokens. 3/3
Flying When Reiver Demon enters, if you cast it from your hand, destroy all nonartifact, nonblack creatures. They can’t be regenerated. 6/6
Flash At the beginning of each player’s draw step, that player draws an additional card.
Flash Whenever a player taps a land for mana, that player adds one mana of any type that land produced.
Each opponent sacrifices a creature or planeswalker with the highest mana value among creatures and planeswalkers they control.
Trample Whenever one or more creatures you control with trample deal combat damage to a player, create an X/X green Dinosaur Beast creature token with trample, where X is the amount of damage those creatures dealt to that player. 6/6
Flying Whenever Hypnotic Specter deals damage to an opponent, that player discards a card at random. 2/2
Trample Whenever Scion of Darkness deals combat damage to a player, you may put target creature card from that player’s graveyard onto the battlefield under your control. Cycling {3} ({3}, Discard this card: Draw a card.) 6/6
Flying Whenever Medomai the Ageless deals combat damage to a player, take an extra turn after this one. Medomai the Ageless can’t attack during extra turns. 4/4
Experiment Kraj has all activated abilities of each other creature with a +1/+1 counter on it. {T}: Put a +1/+1 counter on target creature. 4/6
{T}: Add {C}. {X}{R}{G}, {T}: Target creature gets +X/+0 and gains trample until end of turn.
You gain X life. Create X 1/1 colorless Phyrexian Mite artifact creature tokens with toxic 1 and "This creature can't block." If X is 5 or more, destroy all other creatures. (Players dealt combat damage by a creature with toxic 1 also get a poison counter.)