Zarya, the harsh defender

Defender
{w}{w}{w}zarya can move a sheild to target creature or plainswalker you control giving it +0/4 til the end of turn. If you do this add a counter to zarya
{x}{w}{t} Spend X counters on zarya to do X damage to one creature or plainswalker your opponent controls where X is the amount of counters you spend