Your roll deals 3k damage and your shots freeze the enemy?
I do crit builds mostly for now. 40-60% crit and usually stacking up crit damage to 300-700%
If I would have to list the best upgrades then it is probably:
Tier I: berserkers blood, exploding arrow they are the two best upgrades in the game hands down I think
Tier II: is probably ricochet, demonic pact, double edge and panic frenzy, chain combo, quickdraw magazine (for not warrior)
Tier III: Sniper, Machine Gun, Multishot
magnet upgrade is its own special thing