Ezreal, Mana Conduit

{w}{t}: Until the next end step, all creatures
you control gain +1/+1.
{u}{t}: Draw a card. If it's an instant or sorcery, reveal it. It costs {1} less to cast.
{b}{t}: Place a -1/-1 counter on target creature.
{r}{t}: Deal 2 damage to target creature or planeswalker.
{g}{t}: Add 2 mana of any color.