What is the strategy and point of this deck? Why is the Garchomp and Rayquaza SPs in this deck? Also the Marowak's aren't very good TBH. You really need cards to setup T-Tar. Like SW Weavile and Sableeye. You need more draw power, add 2-2 Claydol and an LA Uxie will help. Also your trainers are weak. Battle Tower is useless, switch it with a Moonlight Stadium that way you can free retreat your T-tar. Mom's Kindness, Dusk Ball, Energy Search and Switch, Great Ball, Potions, and Premier ball are not needed. Switch with like 4 Bebe's Search, 4 Roseanne's Research, and you definantly need Rare Candies and some warp points. Your energies really should be something like 4 Call Energies, 4 Special Dark Energies, and however many regular darkness energies. Also your T-tar line should be more of a 4-2-4 or 4-3-4. IMO