Can't like the art...
Volcanic Flame is cool, straight 150 damage, which is enough to kill most Pokémon, even at DP standards. Major Drawback is the discard of the cards straight from the top deck, without the player being able to choose which the discard, though you can recover most.
Hydro Wave is also pretty cool, causing 30 damage to all benched. 2 of these kill most basics and some Stage 1s.