You dont really track how often opponents commit crimes until you have a reason to do it, and youll be surprised just how often youre proliferating with Patrolling Peacemaker in play
How can you not win when your entire board gets +5/+5 and first strike, trample, and lifelink
People should be playing this already, and so I think gains are unlikely
I mean, just look at what you get from Zimone, Paradox Sculptor in comparison
There are lots of MTG commanders that let you cheat equip costs (in fact Captain America, First Avenger does this too), and the go-to equipment here are things like Colossus Hammer
When that ability resolves, if you still control the Lander token created by Kav Landseeker's last ability, you'll sacrifice that token