Sidris, Zealot of Thor

Haste, first strike
Whenever Sidris attacks or blocks, exile up
to one target instant or sorcery card from
your graveyard. If you do, Sidris, Zealot of
Thor deals damage to target creature equal
to its converted mana value. You may cast
that card until end of turn. If you cast a
spell this way, exile it as it resolves.