I've been participating in the Clash Royale challenges for over a month now, and Day 35’s focus on Goblin Barrel and spell-centric decks really pushed my strategic skills to the next level. One thing I noticed is how a deck built primarily with spells—especially those costing below 4 elixir—can provide tremendous versatility and burst damage when timed correctly. Managing your elixir efficiently is crucial when running such decks. I aimed to include spells like Tornado, The Log, Arrows, and Royal Delivery that complement each other to control enemy troops and support my Goblin Barrel pushes. With my cards mostly boosted to level 15-16, I found that maximizing card levels enhances the impact of spells, giving an edge in tight battles. A significant tip I learned is combining the Goblin Barrel with other spells for defense and offense—using the Tornado to group enemy troops and then finishing with Arrows or Royal Delivery can clear the way for the barrel to reach the tower. Watching overtimes revealed the importance of quick cycle spells to consistently pressure opponents. Additionally, tracking collection progress and ensuring you have all key spell cards unlocked (I ended up with a full 121/121 collection) helped me customize decks tailored to my play style. I found that experimenting with spell-combo decks below 4 elixir challenges your decision-making but rewards quick, tactical gameplay. If you’re trying these challenges, I recommend focusing on leveling your spells, practicing timing for barrel deployments, and learning to adapt based on what your opponents play. Adding challenges like these to your routine not only improves your skill but also keeps the game fresh and exciting. Happy clashing!