For clarity, this Deoxys ex card is from the set, confusingly named "EX Deoxys", one of the most valuable sets from the EX era
Advanced Crystal Beast Emerald Tortoise X WATER Level 3 [ AquaEffect ] ATK 600 DEF 2000 If "Advanced Dark" is not in a Field Zone, send this monster to the GY
Ideal Starting Pokemon : Voltorb, Pikachu EX, or Pincurchin (in that order) Turn 1 Sequence : Play Pok Ball immediately to search for Pikachu EX (if you don't have it) Bench all Electric Pokemon from hand (prioritize Voltorb, Tynamo) Attach energy to active Pokemon (preferably Voltorb for turn 2 Quick Attack) If hand has 2 or fewer playable cards, use Professor's Research Pass turn What NOT to Do : Don't bench non-Electric Pokemon in Electric decks
Eminence lowers the cost of your dragons no matter where it sits, smoothing out your entire game plan
Each one also has different monster types that it can interact with