Just off the top of my head.. Titans should have a freezing Stasis bubble like Frost in Warframe Hunters should have Scyth Blade, instead of throwing the scythes, the Hunter goes ham freezing and shattering everything with scythe melee Warlocks should get a super where they plant there staff in the ground and freeze and shatter everything in its effective radius I am sure Bungie can come up with something better