Do Wooglet's Witchcap and Rabadon's Deathcap stack? I would think they didn't because of their "unique passive," but since the numbers are different (25% vs. 30%) I'm not sure.
It's completely irrelevant, you can't get both on the same map. Wogglet's is the Dominion/Twisted Treeline "Deathcap".
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