Khesun, Skysplitter

First Strike
All {r} or {u} mana you pay is {u/r} mana instead.
Whenever you spend {u} mana, place a
Block Counter on this card, and whenever
you spend {r} mana, place a Strike counter on this
card.
Remove a strike counter: Battle target creature
Remove a block counter: Counter target spell
Though an enemy falls, a blade shall remain
Slice through the world
Heed the calls of the arcane