I've been trying 2 chalice in the main for a few games and I really like it. 3 might be a bit much but I really like 2. Most of the time you are already playing your 1 drops first anyway and cavern still helps get lacky into play. It just randomly hoses at least half of the meta, stops your opponents bolts, swords, and cantrips and has very little drawbacks in the deck besides non-goblin.

