Need Help With Puzzle Labs? Check Out Our Guides & Solutions! : r/ hearthstone
Dr. Boom Puzzle Lab Solutions Guide - Dr. Boom Puzzles List, Answers, & Tips - Hearthstone Top Decks
Dr. Boom Puzzle Lab Solutions Guide - Dr. Boom Puzzles List, Answers, & Tips - Hearthstone Top Decks
Suggestion: change "Whenever you cast a spell" to "Whenever you play a spell", to distinguish it from effects like Puzzle Box or Tortollan Pilgrim : r/hearthstone