Joker

When Joker enters the battlefield, target up to
four creatures. Joker has base power and
toughness equal to the greatest power and
toughness from among them plus 2. Joker gains
the abilities of those creatures and you may
spend mana as though it were mana of any color
to activate those abilities.
Whenever Joker deals combat damage, you may
put two red 1/1 Human Rebel creature tokens
with Menace onto the battlefield.