Arbor Colossus

Colosse arboricole (Arbor Colossus) (fr)

Creature - Giant | Power/Toughness: 6 / 6 (CMC 5)
Reach
: Monstrosity 3. (If this creature isn't monstrous, put three +1/+1 counters on it and it becomes monstrous.)
When Arbor Colossus becomes monstrous, destroy target creature with flying an opponent controls.