Yet another WAR speculation thread.

Decided to post this after looking for a general speculation post, but didn't find one, sorry if I missed it.

My thought is that the PW cards will all be printed at rare with only minus loyalty abilities. The thought being built around the possibility of walkers dying in the coming battle.

There might be other cards printed that can add loyalty to PWs you control built into them. Something like "destroy a target artifact or enchantment. You may add a loyalty counter to a planeswalker you control." kind of cards.

I'm thinking that that could be a way to have so many planeswalker in a limited environment without it getting too wild or crazy. Any thoughts?

Edit: I only kinda got it! I'm also glad to see proliferate is back!