Hi, i played TW and used to spam BID4 Kraken frequently.
After an hour spamming in DBOG i´ve noticed a few things:
About the BOSS:
1) Kraken is not buffing himself invincible when you kill it too fast.
2) Kraken is not summoning little octopus minions (SUPER).
3) Kraken is buffing himself with the reflect buff but it is a retarded effect (you see yourself dying and then you see the kraken throwing ink)
About the DROP:
1) It almost only drop legendary rings
2) It is not dropping excellent earrings or necklaces.
3) It is dropping mystery items.
Thank you all for reading, hope i can help the staff.