Enchant creature (Target a(n) creature as you cast this. This card enters the battlefield attached to that creature.)
When Due Diligence enters the battlefield, target creature you control other than enchanted creature gets +2/+2 and gains vigilance (Attacking doesn't cause this creature to tap.) until end of turn.
Enchanted creature gets +2/+2 and has vigilance (Attacking doesn't cause this creature to tap.).
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