Ihmar, Nonreality Virtuoso

{1}{g}{u}: Target creature gains "whenever this
creature becomes blocked or is blocked by Ihmar, return it to its owner's hand."
{g}{g}: Target creature blocks Ihmar if able to.
"Why won't you listen to me, mortal? I am offering
you wisdom greater than Ojutai! Who could refuse
such an offer? I implore you to accept."
—Ihmar, to Pabu.