To start, +3/+2 is a big bonus for just 2 mana to equip, turning even the smallest creatures into legitimate threats on the board
SR Super Rare UR Ultra Rare SE Secret Rare UL Ultimate Rare PS Platinum Secret Rare CR COLLECTOR'S RARE QCSE Quarter Century Secret Rare Thunder Dragon Colossus X DARK Level 8 [ ThunderFusionEffect ] ATK 2600 DEF 2400 "Thunder Dragon" + 1 Thunder monster Must be either Fusion Summoned, or Special Summoned during the turn a Thunder monster's effect was activated in the hand, by Tributing 1 Thunder Effect non-Fusion Monster (in which case you do not use "Polymerization")
X (Rhypherior), a bottem half to Ho-Oh Legend, like three or four holos, and of course the two Primes on the top of the tin
While it offers unique options, more efficient cards like Cryptic Command or Venser, Shaper Savant might be better choices in competitive play due to their flexibility and immediate impact on the board
PK Ranger Kat's Bonus Pick: I was really tempted to choose the Chansey Art Rare from this set because its just too adorable, but after all the 151 hype, I want to give some love to another gen
Question's effect is the same in the anime and actual card game, but it's interesting to note that in the anime, players are constantly testing their memory when they take a card from one of the Graveyards
