Gailleann

Linger (Whenever you play an instant or sorcery
spell, you may pay {2} and exile this card from your graveyard. If you do, add the bracketed phrase to the triggering spell.)
[Deal 3 damage to any target.]
The stormcallers of Ossory honed their craft in ancient
times as a defense against the wolf-men, but found in
these troubled days that storms were as needed as ever.