Not a viable solution, still would have too much uptime and be as effective as it is, Hunters can dodge behind cover and get their melee charge back. There needs to be a small cooldown after throwing a grenade so that you can’t instantly throw and glacier and shatter it before the crystals have even properly formed, and the damage from shattering needs to be reduced so that it is never a OHK to supers from full health or kill unfrozen players.