This is something I've been wanting to make for a while now. Many folks, especially new players, may not have a good picture of what the monthly events entail and we don't have a solid one-stop shopping thread where they can enlighten themselves. Maybe this can be it.
I welcome any and all contributions! Let's get as much detail for each event as possible and I will edit as necessary. Thank you all in advance! :x
Also, if you know of any changes I missed, please let me know!
MYSTIC MAYHEM
Infernal Limbo - A new game mode only available during Mystic Mayhem that sends players into Limbo to defeat the Demon Lord N’astirh!
Legendary Mystic Scrolls and Double Legendary Mystic Scrolls - Items that can drop anywhere giving you some of the best loot in the game!
Hero Tokens Anywhere - All enemies in the game have a rare chance to drop a Hero token!
Eternity Splinters Galore - Packs of 10 Eternity Splinters have double the regular chance to drop, and have a rare chance to turn into a pack of 63 Eternity Splinters!
Asgard Supports the War Effort - Higher chance for rare runes to drop anywhere in game!
Experience Counts - 63% Experience Boost
Finding Items - 63% RIF/SIF Boost
New Mission: Strike on Limbo - Speak to Magik in the X-Mansion for a mission that grants you 3 power points and +63 permanent health bonus!
Mystic Mayhem Invades - Demons from Limbo have invaded Midtown Manhattan Patrol!
OPERATION OMEGA
During Operation Omega, the first time you complete a Shared Quest each day will reward double Omega Orb rewards.
Omega Level Buffs!: XP, RIF, and SIF start at +24% and increase by 24% every day.
Omega leveling is 24% faster during Operation Omega.
Agent Coulson offers a mission during Operation Omega week. Each day, you can complete five or more waves in the S.H.I.E.L.D. Holo-Sim to receive a reward from him.
During the event, any enemy can drop an artifact called The Omega Drive.
A.R.M.O.R.
A lot. Click here: https://forums.marvelheroes.com/discussion/comment/2933564#Comment_2933564
ODIN'S BOUNTY
Bosses will drop Chests of Odin's Bounty. These chests are loot boxes that you can collect and then open later for an epic lootsplosion! Chests of Odin's Bounty have a high chance to contain Runes and Odin Marks, as well as a chance to drop the Mysterious Crimson Box, which contains rare boss-specific artifacts.
Additionally, everyone has a rare chance to receive Odin's Blessing, which gives your chests special jackpot loot! Odin's Bounty Potions have been known to increase your chances of receiving Odin's Blessing.
COSMIC CHAOS
Cosmic Bosses Drop Double Loot - All cosmic Terminal and Patrol bosses, every time.
Cosmic Questions Answered - 42% server-side multiplicative boost to Rare Item Find, Special Item Find and Experience for all your heroes.
Cosmic Prestige Doubled - Doubled leveling rate for Cosmic Prestige during Cosmic Chaos week.
Cosmic Chaos Supplier: Moondragon - An honorary member of the Guardians of the Galaxy and daughter of Drax the Destroyer, Moondragon is no stranger to cosmic chaos. During the Cosmic Chaos event, Moondragon will exchange Cosmic Worldstones for a variety of items, including a gifted (bound to your account) Doop rune that can be purchased for 500 Cosmic Worldstones.
The Doop rune has an increased chance of dropping from all Doops during the Cosmic Chaos event.