Uhhh D. Prison does target... ... "Remove from play the 'attacking monster'."

  -- By Warren Ortin from Texas on January 02, 2011

Good card, as mentioned... Does NOT stop D. Prison, because it doesn't target. Just saying...

  -- By Mevin Yavin from Stratosphere, Sol on July 02, 2010

Pulled three of these in my duelist genesis box =D all ultra rare lol that totals 4 of them. including 1 ultimate rare, this card isn't bad but i never really summon this good effect and all. Not as useful as stardust or RDA in some cases but still awesome effect.

  -- By Hugh Jackman from Australia on June 30, 2010

Another reason why thought ruler is good is because it stops the D. Prison.

  -- By Jose from Detroit, MI USA on May 26, 2010

he's great but a bit overpriced, you can find ulti 1st mint ones on ebay for 12-13 dollars but whatever, i'll get one anyway, i don't think its really worth the 15 dollars though...but since stupid black rose goes limited i have to find replacements...

  -- By thought ruler pinata from viva pinata on August 31, 2009

this card is great in a late game situation and need to gain ur life points back but it also sucks cause it can be destroyed and taken by goyo so yeah it still is a must have in a extra deck

  -- By Fela Olutayo from Chicago IL on February 28, 2009