Taako, "Witty" Wizard

{2}{r}{t}: Taako, "Witty" Wizard deals 3 damage
split between up to 3 target creatures. You may
only activate this ability if you say "I cast Magic
Missiles."
{2}{u}{t}: Target opponent gains control of a target
mana rock you control. You gain control of that
opponent's most expensive card, your choice if
tied.