Better Together

Unified Presence
At the beginning of your end step, if you control both a blue creature and a green creature, draw a card and put a +1/+1 counter on up to one target creature.

Better Together
{1}{g}{u}Target creature gains hexproof and can't be blocked this turn. Activate only if you control a blue and a green creature.

She sees what could be. He makes it real. Together, they are unstoppable.