TDS spell damage is boosted by dragon allies. So if you want to make your TDS as main AoE damage dealer, put full-dragon deck there. The arguably best and most common dragon deck is Krystenax - Sylvanimora - TDS - Shadow Dragon / Venbarak. But I’ve also tried using TDS in my low level account with Dragotaur - TDS - Dragonette - Dragon Egg and it works amazing. One TDS cast usually enough to wipe entire enemy team with 2k or lower score in PvP.
You can also put TDS as exploder / mana generator. I usually pair it with Gorgotha. Both works very well, can fill each other every turn. I share some of the teams here:
Your team is good, has synergy and cover all 6 mana colors. If I may ask, do you have any other dragons troop? What level are you now?