Combiner of Powers

When Combiner of Powers enters the battlefield,
add {e}{e}{e} (3 energy counters)
Pay {e}{e}{e}{e}: Cast target instant or sorcery card
from your hand without paying its mana cost.
{t}{x}{u/r}: X target creatures gain hexproof until
end of turn.
Not everything is forgotten from history. Especially the teachings of a grand wizard.