Make the Tank survive the assignment
Shen, Kinkou · Ki Barrier · Kinkou Temple
Kinkou is five Might while defending, or six at Temple because he has Tank. Ki Barrier prevents his next seven damage, so an undamaged six-Might Kinkou would need thirteen damage assigned to kill him through the full Barrier. Tank requires dealing with that before assigning combat damage to friendly units without Tank. Barrier is finite prevention, not immunity; direct kill effects and movement answers still need a different response.
