Well yes you could, but not if you just used an attack/rest move. and the type attack absorbing abilities can easily switch in. Let me give an example
suicune uses surf, but mantine was switched in. water absorb=zero damage
you switch to zekrom, mantine uses ice beam on the switch turn, and zekrom gets major damage.
Well, Let me answer your question with a question:
I'll use your suicune as an example: what if you go up against a pokemon with water absorb that is good at taking special attacks like extrasensory? Mantine comes to mind.
Let's go to your celebi: sap sipper ability destroys it; it doesn't even have a psychic move to take advantage of typing. Cut is weak, and a bug can snip your pokemon (4x weakness) during giga impact's recovery turn.
A rock/ground type (golem for example) likewise destroys your zekrom and your victini (resists fire and normal, nullifies electric) Fly and strength in particular don't take advantage of zek's typing or diversity of moves at all. Same with victini: it lacks a psychic move just like your celebi.
Kyurem is a little better, but not much. While not bad, defenses will likely leave it crushed before it can use avalanche. Glaciate is a glorified icy wind; kyru has access to much better moves. Draco meteor is a good move; I'd keep it. Hyper beam...again, during recharge it is a sitting duck.
Finally, giratina. It has two ghost type moves, which is worriesome when dealing with immune normal types. Aura sphere and earth power are resisted by flying types....and flying/normal types are quite common. I can see this pokemon getting messed up pretty badly by a togekiss, braviary, or noctowl even.
I say first delete all rest-turn moves, and all HM moves from your pokemon with the move deleter, then repost for suggestion.