When a monster declares an attack: Destroy 2 Set cards you control, and if you do, negate that attack, then, if any Monster Cards were destroyed by this effect and sent to the GY, choose 1 and destroy as many monsters your opponent controls as possible with ATK less than or equal to that monster's DEF, then it becomes the End Phase
Ogre-Head Helm Drawing three for 2 mana is pretty cool, but you need the right build for Ogre-Head Helm to work, like lots of tokens and unblockable things
The way they're played is to stall with Chansey while attaching a Fire Energy to Moltres every turn and then scooping Chansey up when it gets too much damage, using Wildfire, putting Chansey back down, scooping Moltres up, putting Chansey out, attaching Fire Energy to Moltres, etc
Blasting Station has a reputation for being a combo piece, so beware you could attract a lot of attention when you cast it
A few I can think of off the top of my head are Rogues, Zombies, and Faeries