Akmenus, Spell Hoarder

Flying menace
Whenever another player casts a spell, create a
copy of it, you may cast it at any time
{2}{u}{b}{t}: copy target ability that is not a mana ability, you may choose new targets for that ability
{u}{r}{t}: add 3 mana of any color to your mana pool, you may spend this as though it were any color