I am a beginner at the battle coliseum, and I am using the malevolent grimfruit. My problem is, that ONLY during a battle against Eclipse, the fruit doesnt seem to use its heal ability... any reason why it wouldn't work on Eclipse, but has worked against every other opponent I have faced?

Some opponents don't let you heal against them, read this thread for more information : HERE @ DaniDetachment [edit] edited for poor spelling

Oh, thank you very much! :)