Theorycrafting: Mordekaiser/Trundle Botlane

I've been looking into some drain tank botlane pairs with the introduction of Knight's Vow, and I think I've found my favorite pair yet.

Mordekaiser W grants Movement Speed when moving toward your linked target, which I assume stacks with the MS granted by Knight's Vow in the same scenario, which also grants Armor.

Mordekaiser W also steals HP from enemy champions, as well as dealing DoT when near your ally. This healing is amplified by Knight's Vow due to the damage dealt through the health steal and DoT, and the healing on Trundle will be amplified by Mordekaiser's Knight's Vow, as well as Trundle's W.

Lane sustain is going to be stupidly easy with Trundle Passive and Mordekaiser W on minions. Some of the damage dealt to Trundle as harass will be redirected onto Mordekaiser's shield, while direct harass to Mordekaiser can also be mitigated by the shield.

Throw in Relic Shields for both, and now they heal an insane amount off of minion executes too.

Don't even get me started on the Ultimates. At level 3, Trundle R steals 35% Max HP over time, before resists. This is stolen HP, not just damage dealt. Trundle will steal this HP, and the damage it deals will heal Morde for a small amount. He also removes a portion of the enemy resists, making Morde's Ultimate do even more damage, another 35% stolen HP for Morde which will heal Trundle a small amount as well. If Morde builds like an APC bot, he could eventually reach 50% max HP damage with a little under 400 AP.

If these ultimates were combined on, say, a 4.5k HP lategame tank, both champions could potentially heal for 1.5k+ HP, deal 60+% of a tank's HP just by pressing R, while also crippling his resists so he can be killed easily. Meanwhile, Trundle and Morde are both exchanging healing through their other abilities, and when the tank dies, Mordekaiser gains another 600+ HP and a massively tanky ghost, while Trundle will heal off the death with his passive and share that small heal with Morde.

Oh, and that kiting issue Mordekaiser has? Not much of an issue when he has 460 MS WITHOUT BOOTS just from his W and Knight's Vow. Throw in magic pen boots, and all of a sudden, Morde has frequent boosts of 400-500MS (with the reduction at 415, not too sure how to calculate) WITHOUT RYLAI'S. Grab a Rylai's, and no one is getting anywhere. Need to close that initial gap? Trundle E, W, Q. It's broken.

With all of this healing, both champions can afford to build way more damage than they normally would. A Knight's Vow would likely be the only tank item an APC Morde would need, but a Spirit Visage would be an awesome pickup for both. Trundle could afford to build a bit of Lifesteal like a Hydra or BotRK, while Morde could build a Gunblade into full AP for insane healing and damage.

Am I stupid, or does this sound broken as all hell? Anyone down to try this with me later today?