[DGDobrev]

I just came up with this... It is so obvious, that I cannot help but wonder how did it escape my mind.

What do you need:
- a unit that can resurrect dead stacks (like the inquisitor)
- trap spell

What is the tactic?

Get a stack of Inquisitors. Split it in 3 separate stacks, at least 2 of them consisting of 1 inquisitor.. If you can hold off the enemies, split them in 4, even 5, if it is applicable.
Cast a trap in front of one of the inquisitor's stacks. Walk that stack onto the trap. It dies. Ress it with one of the inquisitor stacks.
The next turn, cast a trap in front of the same squad that just died. Have it commit a suicide again. Ress it with the third Inquisitor squad.
The next turn cast another trap in front of one of the squads that use their ress. Have them commit a suicide and ress it with the squad that committed suicide twice.

The idea is that since that stack started the combat (it is not summoned), it will count as a trap medal increment. So in general, the more squads can commit suicide and be ressed like this, the more your medal will improve. If you can do it with 3 Inquisitor squads the medal can improve by 3 per battle, so it would take only 34 battles to max it and reap the rewards from it.