Raichu

Prowess, flash
When Raichu attacks you may draw a card, then discard a card. If an artifact card was discarded
you may cast it from your graveyard until end of
turn.
Thunder {r}{u}{t} Raichu deals X damage to target attacking or blocking creature where X is the
number of instant/sorcery and artifacts in your graveyard, then scry X.