Glorious Purpose is a rare Enchantment — Plan card from Marvel Super Heroes Commander (MSC), collector number 330. Current market price: $1.28, TCGplayer market prices via Scryfall.
Whenever a creature you control connives, put a +1/+1 counter on that creature and a plan counter on this enchantment. When the sixth plan counter is put on this enchantment, sacrifice it. If you do, exile the top four cards of your library. You may cast any number of spells from among them without paying their mana costs. Put the rest into your hand.