Strongest Creatures
The Most Attack I've got out of a creature is 54 without researching into a melee attack upgrade or any other upgrade or spec. Ability, and it is realatively cheap at around 400 coal and 500 electricity.
The super monster is an Anaconda and a dragonfly, but you need the insect invasion expansion to do this, it can be either flying or amphibios and is best used with the anaconda tail to give it the loner ability then do an attack move straight into the enemy base by it's self. It can wipe out AA-towers in one strike and is incredibly powerfull if upgraded, hope this helps.
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