Siege Battle Season 21 Opening and Revamp Notice
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2026-03-23 01:18
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Greetings from Com2uS!
[Siege Battle Season 21] will begin on Mar. 30 with a new look!
Various rewards including season exclusive rewards will be available in the new season.
Please read below for details on the schedule, revamp, and rewards.
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▶ Siege Battle Season 21 Schedule
Mar. 30, 11:00 AM - Jun. 26, 10:59 PM
▶ Siege Battle Tournament Season 21 Schedule
Jun. 29, 11:00 AM - Jul. 18, 11:59 PM
* Based on server time.
* The Siege Battle Tournament will be held after Season 21 ends.
■ Siege Battle Revamp
▶ A new map will be applied from Siege Battle Season 21.
: Base 2 (4★ Base) adjacent to the HQ will be switched with Base 9 in the front line.
: The new map can be checked on the battlefield starting Mar. 22, 12:00 AM (server time) after the Season 20 Tournament ends.
■ Siege Battle Season 21 Rewards

[Transmogrification - Dance of Death Sky Dancer]
It's a season exclusive transmog that can only be obtained from Siege Battle Season 21.

[Appearance Effect Reward]
It's a special effect that makes Monsters appear with more visual effects when entering battle.
One effect can be applied per Monster at the Transmogrification Building, and the effects can be used permanently after acquisition.

[Siege Battle Background Reward]
It's a limited-time item that allows your Monsters placed in defense decks to battle in special background settings.
The background is a guild-bound reward that will be changed and applied automatically to the guild for the next Siege Battle season.
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Thanks!