I second @Chadmo and @JGE, you should keep them all, and they all have their uses. It’s the same reason why I keep at least one of every hero. Even if you don’t see an immediate use, you never know what you need in the future.
I’m with @Rduke77, and I recommend ditching Karil.
Here’s my problem with Ulmer–He does very minor damage and reduces defense on heroes that I’m not even ready to bring down. In offense, Valen serves me better even in Very Fast scenarios. I don’t have time to play debuff in Very Fast tourneys when my people are dropping. I find it’s far more valuable to bring down a single target. Ulmer does not hit like a truck; he just debuffs. Good for defense, I’m sure, but there are alternatives (Gunnar) so I’m not sure I care enough.
So the next question is–Will you actually get around to leveling Ulmer, or will you always be drawing more appealing blues to level for the next 3 years? Is Ulmer at level 1? If so, when will you actually level him? If you already know you’ll always have better things to do, then you may as well scrap him. You’ll draw him again later anyway. He’s not hard to come by.
All this being said, I have no experience fighting with or against Ulmer’s costume or costume bonus.
Gato has his uses, and it’s nice to have more than one 3* blue sniper.
The others I’m a fan of, and I recommend you keep them all. Even if you don’t use them soon and it takes 8 months before you start on them, they are valuable.
Check out the top 100 in the rare tier challenge events. They use costumed Gunnar (where Ulmer is already redundant and has subpar defense debuff), Nordri, and shockingly, costumed Karil. You don’t see much of the rare ice snipers used in the monthly challenge events, unless you don’t strive to improve your rankings.
Until you level a second Nordri, I’d still keep Karil. Paried with Nordri he can usually kill 2 heroes and severely wound the third. Sure you won’t be using him much outside of rush, but if Ulmer gets a pass, Karil certainly deserves to stay.
Now if and when you level a second Nordri, then we can have a conversation about whether to ditch Karil in favor of Nordri #2.
Well, now you see why I propose leaving Karil in your roster, opposing some posters in this thread suggesting to eliminate Karil
Chick Jr. at +16 talents all sword path has 613 attack stat and deals 180% damage to all. That has a total more damage than highly emblemed costumed Ulmer
No you don’t. Kiril is 4* and is ineligible in rare tier challenge events.
Marginally more so, like <10% worth. But with double Nordris I can basically keep the elemental debuff going forever if I alternate firing them, and I value that more than slightly higher damage but without any secondary effects.