Dovin's Acuity 
Enchantment
When this enchantment enters, you gain 2 life and draw a card. Whenever you cast an instant spell during your main phase, you may return this enchantment to its owner's hand.
Legality
standardNOT LEGALpioneerLEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL