I can go do that BEFORE killing the dragon? The two events are not related at all? So if there's a ritual to resurrect the Dragon, what about these Chaos Guardians? Do they respawn automatically? Are they one-time deals? Is there a ritual to re-spawn them too?
be warned after a certain version of de the chaos dragons got much stronger dps wise and much more resilent to op weoponshey don't respawn, but at every multiple of 10,000 (ie: 10k, 20k, 50k, etc) in either the x or z axis, there's a place for one to spawn so, theoretically, there's an arbitrarily large number of them available. Just note that they are VERY hard to kill without either OP weapons, or ridiculously powerful armour. They're also far faster and much more agile than the normal end dragon, so watch your ass.
How much stronger ? the author showed the chaos guardian killing them with full draconic (no capacitor though that time )the armor actually got depleted of its charge from around full
it might be a good idea to test it out in a ssp testworld of sorts