Opponents.
The plural of subside is subsides. As in "the opponent subsides".
OPPONENTS...
Mud is uncountable and doesn't have a plural. You can have different types of mud, you can throw a lot of mud at your opponent, but you wouldn't use muds.
That is the correct spelling of the word "enemy" (foe, opponent).
The slang term (plural noun) is shoutouts or shout-outs, which is public mention or recognition.*The slang sports term is shutout, beating a scoreless opponent.
The word floor is a noun. The plural form is floors.Informally, "floor" can be used as a verb. It means to knock someone to the ground -- He floored his opponent with one punch. It also means baffled -- Her questions floored him.
The other team was the opponent. In the tennis match, Ruby was Daisy's opponent. My opponent was scary. The opponent was prepared.
an opponent is a rival
Opponent's can be punctuated with an apostrophe to show possession (e.g., opponent's strategy) or as a contraction (e.g., opponent's playing).
An imaginary opponent.
The Opponent was created in 2000.
For the compound noun 'take away', a spots term for taking a ball or puck from an opponent or the British term for the US term 'take out' type of restaurant, the plural form is take aways. (There are three take aways on this block.)The verb form for the verb-adverb term to remove from a place or thing, a plural noun uses the form take away. (People take away..., Birds take away..., They take away...)