Use Resonance against a Tyra. Her Fire Bomb will kill any clones you put on point anyway, so you might as well take Resonance so that every time the fire kills your clones, they explode and deal damage to the enemy frontlines.
If you have the luxury to do so, place/channel your shield once Recharge is on cooldown. Otherwise Torvald can simply drain it and repair his own shield in one fell swoop.
Ash's Shoulder Bash ends upon hitting a target. Try to block off her most convenient escape path when she reaches low health, trading 800 health for a basically guaranteed kill.