Your search for "Grow Extra Arms 101" revealed the following:
Grow Extra Arms (SPM) from Marvel's Spider-Man, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Kevin Sidharta Card Text:This spell costs 1 less to cast if it targets a Spider.Target creature gets +4/+4 until end of turn.
Grow Extra Arms (Foil) (SPM) from Marvel's Spider-Man, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Kevin Sidharta Card Text:This spell costs 1 less to cast if it targets a Spider.Target creature gets +4/+4 until end of turn....