Electabuzz lv 100 Thunder, thunder punch, do not rember the rest of the moves no. electabuzz is weak, there are much better electric types (zapdos, jolteon and magneton). besides, thunder AND thunderpunch are redundant. if you insist on electabuzz, you're probably best off with thunderbolt, psychic, thunder wave and a filler (double team maybe).
Ardicono (the ice bird) lv 100 ice beam, blizzard, fly, do not rember blizzard AND ice beam are redundant. fly is no good. articuno's best set is probably substitute, toxic, double team and ice beam, as a defensive set. add bubblebeam if you want to make articuno more offensive, although that doesn't work well with articuno's strengths (high defense and special).
Mewtwo lv 87 Psikick, Psiwave, Psibeam, do not rember umm, no. mewtwo has the potential for a lot of really tough movesets, but you won't get anywhere with the painfully redundant psychic, psywave AND psybeam (stick with psychic). mewtwo can learn blizzard, thunderbolt, fire blast, recover,
amnesia, barrier and rest (and psychic). choose from those attacks and you probably won't go wrong. i like psychic, blizzard, recover and amnesia myself, although i've been toying with the idea of the defensive mewtwo (psychic/blizzard, amnesia, recover and barrier). but there are lots of good mewtwo sets, you just have to be smart about them.
by the way, just a little advice. when it comes to the strong elemental attacks in rby,
fire blast is better than flamethrower (unless you plan on lasting a long time - most fire pokes won't outlast the 8 PP on fire blast though)
hydro pump is about the same as surf (go with what you prefer)
thunder is always worse than thunderbolt.
blizzard is better than ice beam. really defensive pokemon (like the articuno set above) should use ice beam instead, though.
edit: somehow part of my post got deleted because of the greater than/less than signs - a bug that really needs to be fixed, btw
DDR: want to pass Paranoia Survivor ~ Religions are just cults with more members. -- The resident SSB:M Captain Falcon user. -- "Let's eat fast so we can eat again!" ~ Ash