Keldon Mantle 
Enchantment — Aura
Enchant creature
: Regenerate enchanted creature.
: Enchanted creature gets +1/+0 until end of turn.
: Enchanted creature gains trample until end of turn.
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyLEGALvintageLEGALcommanderLEGAL