Just tossing an idea:
"When I deal skull damage, death mark the second Enemy"
could also be dm first enemy, but wait... we got that already.
Maybe something more along the lines of "on skull/purple match dm 1st/2nd enemy"
I think applying DM on the second enemy in order on skull match would be an interesting idea since it potentially can thin out enemy teams without wasting the effect on skulls -> could make for some really interesting/unorthodox scenarios, playstyles and challenges.
In best case you hit with skulls on first turn -> hit on first, DM on 2nd
on the enemy turn, DM procs
second turn, you hit again, dm procs on enemy turn
third turn same again, so you're left with only one enmy who has endured 3 skull hits this far (assuming that the enemy did - nothing until now.)
That would hapen: 10% * 10% * 10% = 0.1% of all games (and you can't tell me that 1 in 1000 is too often) (actually even less often since you'll rarely get three skull matches in three turns without the enemy being able to do anything in the meantime - and then there are also warded and impervious troops and such...)
In worst case, DM dissipates without an effect every time you hit -> you play a very normal game as if the trait was not there
That would happen... well seldom, i can't give a specific probability, since i dunno likeliness for player to hit, dm to dissappear without effect and also the match duration without DM - its probably rather small though, smaller than the best case even. In summary I'd expect 1 kill via DM until the battle is over.
Summary: this way DKs 3rd trait can POTENTIALLY reduce the time to kill by a fair bit, while not being too overpowered. the only thing that would be debatable imo is:
- is it OP if you can bypass a warded troop on first spot with skulls? (might be not hero-worthy to some)
Edit: Sorry for the long, rambly and grammatically bad post, its a quater to one in the morning roud here, i'm tired. good night.