CommentStreams:D29555dfb64f39b5d5a73f0f544d678f

The simplest way is to use the full blue event Island deck. Simply seducing it would give about 18.5k strength, leveling up a bit could get you to 23k-24k, add guild bonuses and event artifacts and you could beat every location with ease.

If you try using regular decks that would require much more money. E.g. with a 20.5k Fairy deck and the omptimized artifact layout the best I could expect to unlock for raid is CC 19, and only with ~3.5% chance.