Arbor Colossus

高木の巨人 (Arbor Colossus) (ja)

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.