Kellan Joins Up xln {T}: Put a +1/+1 counter

{T}: Put a +1/+1 counter on each creature token you control

Put a number of +1/+1 counters on Grey Host Reinforcements equal to the number of creature cards exiled this way

{1}{B}: Each player mills a card

At the beginning of each opponent's end step

Kellan Joins Up xln {T}: Put a +1/+1 counterWhen Kellan Joins Up enters the battlefield, you may exile a nonland card with mana value 3 or less from your hand. If you do, it becomes plotted. (You may cast it as a sorcery on a later turn without paying its mana cost.) Whenever a legendary creature enters the battlefield under your control, put a +1 +1 counter on each creature you control.