Kontronas, the Old One

When Kontronas, the Old One enters the
battlefield, if you control a card with two or
more colors in its mana cost, put a +1/+1 counter
on each creature with the same colors in its mana
cost.
{7}: For each creature you control with two or
more colors in its mana cost, Kontronas gets
+1/+1 until end of turn.
Even titans fear something...