Radiant, Dustbringer

Haste
Knight Radiant's you control have menace.
{2}: Invested 3 (When you pay {2}, put 3 +1/+1
counters on this creature. Remove all counters put on
this way at the beginning of the next endstep. Active
this ability only once per turn.)

Remove a +1/+1 counter from Radiant,
Dustbringer: Deal 1 damage to any target.
I will seek self-mastery.