Slumbering Keepguard 
Creature — Human Knight
Whenever an enchantment you control enters, scry 1.
: This creature gets +1/+1 until end of turn for each enchantment you control.
Legality
standardLEGALpioneerLEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL