The other keywords are nice, but Hexproof is where its at
This mom-adjacent is a goblin lord who can save other creatures and is pretty on rate for that ability, so why not
So, to some extent, Koth is an incentive to go Mono-Red or close to it, and if you can do that, obviously the -3 will kill most stuff, but on a board that is built out at all, your opponent can still easily deal with Koth This will be able to attack with higher power a decent chunk of the time for sure, but the times where it is just a lowly 2/3 will feel pretty rough
Backlight is a situational card that allows you to rest or KO your opponents characters, New Genesis is a great searcher card that allows you to look at cards in your deck of a film type to add to your hand, and Im Invincible sets your leader as active so you can swing to attack again