Grab. The colossus can grab its opponents in its mighty fists. A creature struck by the grab attack is Restrained and remains so until escape, requireing a melee attack against the colossus. It cannot leave the colossus' square or use weapons larger than size small. The colossus can grab two victims of size enormous or smaller (one in each fist). Grabbed victims are automatically crushed for for 6d6 crushing damage at the start of their turn.
Roar. The colossus can unleash a roar so loud that its victims are stricken with fear. A roar is an 8d6 mental attack, and attacks any creature in a Burst 16. Victims successfully attacked are made Afraid.