Pursuit of Knowledge 

Enchantment
If you would draw a card, you may put a study counter on this enchantment instead. Remove three study counters from this enchantment, Sacrifice this enchantment: Draw seven cards.
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyLEGALvintageLEGALcommanderLEGAL