Walter's F.U.N.N.H.A.U.S.

Whenever an opponent casts a spell that shares its name with a card that player owns in exile or
a graveyard, that player gets an offence counter.
{t}: Add {c}
{2}, {t}: Target opponent discards a card for each offence counter on them.
"That's an acronym and you don't want to know
what it stands for!"