Billiam, Vengeful Crier

Whenever an opponent targets you or a permanent or spell you control, you get a tear counter.
{u}{t}remove x tear counters: target opponent who previously targeted you or a permanent you control puts x cards from their library into their graveyard.
{b}{t}remove x tear counters: target opponent who previously targeted a you or a spell you control discards x cards.
{r}{t}remove x tear counters: deal x damage to any target that previously did damage to you or a permanent you control.