Due to the low number of thunder monsters I seen lately I added my own.

Light
7 Stars
Thunder /Effect
When 7-Star Twister is placed face up on the field by flip summon, special summon, or normal summon roll a six-sided dice once. Treat your Monster Card Zone and your opponent's Monster Card Zone as #'s 1-5, counting from your right. Destroy the monsters that is in the same Monster Card Zones as the dice result. If the result is 6, all monsters including this monster are Destoryed.
Atk: 2400
Def: 2500