What is the best counter for Eternatus in Gen 8 Ubers?

Question

I'm trying out Ubers, and I keep running into Eternatus, which is a pain to deal with. What are the best counters to Eternatus?

(Sorry if this is not allowed.)

Comments

You will probably get a better answer if you ask here: https://www.smogon.com/forums/threads/simple-questions-simple-answers.3656274/

Answer 1

I asked for you On Smogon and the user SiTuM replied.

necrozma-dm, tyranitar, blissey and lunala are all good counters to offensive eternatus, otherwise you can just play around it with like yveltal and ho oh if it's just defensive

Pretty self explanatory for most of them.
Source:
https://www.smogon.com/forums/threads/simple-questions-simple-answers.3656274/

Comments

Why Blissey over Eviolite Chansey?

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Blissey can hold an item