Sure, the abilities are similar, but Thassas Oracle allows you to have at least a few cards in your library for its instant-win scenario, whereas the Maniac leaves you completely denuded of anything in your library
Metal Reflect Slime X TRAP Continuous Special Summon this card in Defense Position as an Effect Monster (Aqua/WATER/Level 10/ATK 0/DEF 3000) (this card is also still a Trap)
Hitmonlees attack, Stretch Kick, is completely underrated and can take the opponent by surprise
Ever since the pocket monster was introduced in Generation One, fans have been wondering just what Diglett might be hiding below, a query that has also extended to its evolved form, Dugtrio
"But you gave it such a good score, why not buy it?" I did give it a good score because it's a good game