The first week of Mythic+ Season 3 affixes appears to be Bolstering, Explosive and Tyrannical! Season 3 Mythic+ Guide
Bolstering, Explosive, TyrannicalThis week's Mythic+ affixes are Tyrannical, Bolstering, Explosive, with the Seasonal affix Encrypted. This will be the first week of the Seasonal Encrypted affix! Encrypted Mythic+ Guide This week is the exact same as it was in Season 2, except with a change of Seasonal affixes.
Loot CapsFor this week, loot from the end of dungeon chest will be capped at +10. However, the Great Vault activities will drop up to maximum item level next week.
Keystone LevelEnd of DungeonGreat Vault223625232392524242252524625562492557249259825226292522621025526511255*26812255*27213255*27214255*27515255*278 New Season 3 Affix RotationHere's what we know about the Season 3 Mythic+ affix rotation.
Week #Affix 1 (Level 2+)Affix 2 (Level 4+)Affix 3 (Level 7+)Seasonal Affix (Level 10+)1FortifiedSanguineGrievousEncrypted2TyrannicalBolsteringExplosiveEncrypted3Fortified??????Encrypted4Tyrannical??????Encrypted5Fortified??????Encrypted6Tyrannical??????Encrypted7Fortified??????Encrypted8Tyrannical??????Encrypted9Fortified??????Encrypted10Tyrannical??????Encrypted11Fortified??????Encrypted12Tyrannical??????Encrypted Read more on wowhead.com