Think Tank 
Enchantment
At the beginning of your upkeep, surveil 1. (Look at the top card of your library. You may put that card into your graveyard.)
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyLEGALvintageLEGALcommanderLEGAL
Enchantment
At the beginning of your upkeep, surveil 1. (Look at the top card of your library. You may put that card into your graveyard.)