Delta, Chimeric Transposition

Each nonland card in your hand has
Delay 4 — {1}{u}.
{1}{u}: Delta becomes your choice of artifact, creature, or enchantment and loses all other
card types.
——{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}
"Form? Unnecessary; irrelevant; obstacle to understanding [@)!*@!@))*]."