Don't use spirits?
Adapt? Call him as a target, and get your buddies to kill him?
Consume Soul does only one thing, and that's kill spirits. It does it pretty well, as a result. It's fast enough to be a hard interrupt, it's frequent enough that unless delayed via Diversion or something they'll just do it again 4 seconds later, and it's cheap enough to spam. When I get tired of facing annoying rits I take it along with me. There is no counter but the obvious - make him your target and kill him, or resign yourself to playing without spirits - at least if you stop putting them down you might stop the heals.
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