How hard is trials of the king?

Animatronicsto

What champs and what abilities should I bring for the quest specific nodes?

Darkstar4387

It's pretty easy, only 3 fights as for what buffs they are and who you should bring vary on the day as your opposition gains certain buffs and abilities depending on which day.

https://forums.playcontestofchampions.com/en/discussion/46665/announcing-special-quests-trials-of-the-king/p1

Today's is armor, energy and physical ressitance + 150% champions boost. People who break armor, bleed, posion, burn, should, or people with high crit damage, or other debuffs should work well today

Lunchbox45

Pretty easy. Even expert can be done with 4/40 4 stars

Canario

Can be done with just one champ