The Legendary Heroes are ready to rumble! From today until Monday, we're running special dungeons where you'll be able to use a team based around Legendary Heroes, even if you don't have them unlocked. Plus, you'll get crystals when you complete those dungeons which are used for quests that pay out legendary tokens. In total, you can earn up to 100 tokens each for IGOROK, Pontifex, Bramble, and Furnace.
You're guaranteed to get at one crystal in chests at the end of dungeons, but you'll find more in sparkling objects along the way. Earning a total of 204 crystals will net you the 100 tokens for that hero. Quick-looting for crystals is an option, but as always, that won't include anything you'd find in sparkling objects. Sparkling objects that don't contain crystals will contain hero tokens, so be sure to tap every one you see. Also, if you buy crystals or find them in other dungeons, they will still count towards the quests. In addition, the event dungeons do not drop rune chests, so you'll be guaranteed to get a token every run.
All four quest lines are available for the entire event, so complete them at your own pace, and prioritize whichever hero you like best!