Six, Glassed with Reach

Indestructible, Shroud, Vigilance
At the beginning of combat on your turn, put a
-1/-1 counter on Six and give up to two
creatures Indestructible or +4/+0 and Haste
until the beginning of your next upkeep.
On your end step, destroy all creatures you
control. For each creature that dies this way, Six
does damage equal to that creature's power to
any target.
When Six dies, destroy all creatures.