Seeks are good, I think you can even get the same candle twice a turn if you play it first.
btw there is a small bug with Spores in round 2, when they replicate in front of the Bad Eye, then get shot, and instead of spawning the gold in the empty place, they sometimes spawn it in their origin place that's already occupied by a Spore.
Another bug/trick is to burn the eye from just below the board, you can burn 1 card this way without taking damage. But you don't need that, you can clear the bad cards by winning the round. Just get enough candles.