The enchanted creature is the source of the triggered ability it gains, not Grasp of the Hieromancer. If the enchanted creature isn’t white, that ability can target a creature with protection from white, for example.
22-06-2015
wotc
The triggered ability granted to the enchanted creature will tap the creature before blockers are declared.
Random a card of Magic: The Gathering (MTG), but you can also roll the D20 dice, random a Planeswalker, have fun with the random rules and more.