In light of the new Uthuk hero also having ways to ignore armor pretty reliably, i decided to tally up all the ways you can ignore armor in this game. It felt like there was a lot...i wasnt wrong. It almost feels easier to ignore armor than do high damage right now.
Daqan:
--Heavy Crossbowmen: One doublesurge per ranged attack adds a Mort (range 1-3)
--Piercing Shots upgrade: Discard [R] or [M] at range 1-3 when attacking to add a Mort
--Eagle-Banner Bearer: Spend any number of Inspiration tokens to add a Mort
Waiqar:
--Carrion Lancer ability: Requires blight so it can be difficult to pull off, but it can easily add multiple morts if it does trigger.
--Ankaur Maro: Can add a mortal strike to ranged attack
--DKs: Adds a mortal strike to melee attack (also a great candidate for Reaping Blade since they have 2R1B, which is blank prone)
--Touch of Death: Deals mortal wounds equal to Stable runes at the end of each round.
--Deathcaller: Skill to spend a blight at range 1-5 to cause Stable rune wounds.
Latari:
--Aliana: Straight up adds Mortal Strike for existing
--Leonx Riders: Can reliably add a Mortal Strike for 2surge once per melee
Uthuk: (Still mostly unknown but they do have ways revealed already)
--Ravos: Once per melee attack, each enemy unit at Range1 suffers 1 wound (not mortal strike but same effect). He can also force a unit at range 1 to take a wound at the end of the round.
--Kethra: Can Skill to select a friendly unit anywhere on the board to potentially cause 1-2 wounds to that unit and enemy units within range 1-2 of the chosen unit. Can also flatout add a mortal strike to her attacks.
Universal:
--Reaping Blade: Blanks are deadly!
--White Dice: 1/12 chance to cause a Mortal Strike on their own (admittedly i rarely see this one)
That is a LOT of ways to just ignore armor. While only the DK's actually have a resistance to mortal strikes (subtract 1 mortal strike when defending). And this game is fresh, there isnt even that many options yet. Also feel like i missed another source of ignoring armor.
All of these options are reasonably cheap too, while the crazy high damage approach to just burn through the armor can easily take half your list.
i hope they stop adding more ways to cause mortal strikes (or similar effects). Armor really feels like it has little value right now except in basic infantry vs basic infantry. Or offer ways to defend against it, that would work too.
Edit: i did miss one, Eagle-banner bearer for Daqans
And Deathcaller.