We encountered some problems from the ability of Valshalla:

Once per round, if a friendly creature is attacked and destroyed by an enemy creature, place a Wrath token on Valshalla, up to a maximum of 4 tokens. For each token on her, Valshalla gains Melee +1.

If a friendly creature is killed by either:
(1) a damage barrier (2) burn/rot to death (3) a counterattack
will Valshalla gain wraith from it?