The power level of your deck isnt everything
The short answer is that in general you get a reasonable amount of value over a Raven's Crime, both information and disruption, however there is a significant delay on the relevance of that disruption
As a cheap one-cost creature, Zack really isnt a terrible choice in decks like this, either
Single Combat
That makes her a fairly good aggressive Legendary Creature anyway, but the ability is what makes Drana shine
For more counters synergy, well add in The OzolithThe Ozolith so we get to keep counters if our creatures die, and some new cards from Bloomburrow , Season of GatheringSeason of Gathering and Byrke, Long Ear of the LawByrke, Long Ear of the Law