mtg black dragon cards Necromaster [Dragons of Tarkir] the Blight Dragon gains haste until end of turn Black Dragon

It naturally ramps up in loyalty very fast, and it has a defensive ability to create a growing 2/2 Spirit token

They can either give a target creature +3/-3 until the end of the turn, flicker a nonland permanent, or create a 1/1 colorless Eldrazi Scion that can be sacrificed for one colorless mana

17 The War Doctor Do No Harm Turned Into DoLots Of Harm An incredible commander with a huge amount of potential, The War Doctor takes time under his control to deal an obscene amount of damage turn after turn

I also like the implications of having three of the four cards involved only matter for their type

Creatures your opponents control get -1/-1 until end of turn

This blue instant is more interesting in a storm shell, where you can cast it for free to up your storm count, but potentially get to recast a useful creature in the process