Reckless Training

Reckless Training deals damage to target creature
equal to its toughness minus 1. This damage isn't
removed until your next turn. At the beginning of
your next upkeep, add a number of +1/+1 counters
equal to the damage dealt.

Flashback {r}{g}

"First you act like you're dead for a week...
then you go and almost kill yourself."