Jötun Owl Keeper

Creature - Giant 3/3, 2W (3)
Cumulative upkeep {W} or {U} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)
When Jötun Owl Keeper is put into a graveyard from the battlefield, put a 1/1 white Bird creature token with flying onto the battlefield for each age counter on it.¹
Illus. Dave Dorman

Format Legality	Legal in Vintage, Legacy, Extended Banned in Standard
Printings (1/9)	Coldsnap (Uncommon)