Gives any mob (that has ground based navigation, like zombies) the ability to climb walls like spiders! Pairs well with mods that add mob block breaking behavior, like Improved Mobs, and mods that add block physics, like Simple Block Physics, to create a truly intense defensive experience where you can't get away from the mobs!
Note that the pathing AI is quite literally the same as that of the spider, so it is often... unelegant, at times. Future updates may address this!
climbingMobsAllowList: A list of mobs (hostile, passive, you name it) to allow to use climbing behavior.
/summon minecraft:zombie ~ ~ ~ {Tags: ["canClimb"]}
useAllowlistAsBanlist: Uses the allowlist as a banlist, attempting to add climbing behavior to all mobs EXCEPT those listed in climbingMobsAllowlist.

Give mobs the ability to climb walls like spiders!