View source for Offense OS

{{OSHeader}}
<onlyinclude>
{{EquipContent
|name = Offense OS
|effect = At the start of the wave, grant unit '''[{{Status|ATK up}} +14.5%(+20%) / {{Status|SPD up}} +2.75%(+7.5%)]'''.


At the start of the wave, inflict unit '''[{{Status|Damage Taken Increased}} +25%]'''.

Effects last for the rest of the wave.
|note = 
|exp = 34750
}}
</onlyinclude>
{{TableEnd}}
==Acquisition==
*[[Workshop|Production]]
*[[Orca Date Contest]]'s Exchange
{| class="wikitable mw-collapsible mw-collapsed"
! style="background-color:#7071ff" colspan="3" |Drop List
|-
!style="background-color:#7071ff;width: 60%"|Events/Main Story
!style="background-color:#7071ff;width: 20%"|Stage
!style="background-color:#7071ff;width: 20%"|Note
|-
|[[Main Story]]
|5-8Ex
|
|-
|[[Main Story]]
|6-2Ex
|
|-
|[[Choco Queen in Wonderland]]
|Ev-3Ex
|
|-
|[[Aria of the Elven Town]]
|Ev2-3
|First Clear Reward
|-
|[[Invitation from Paradise]]
|Ev1-1Ex
|
|-
|[[Project ORCA Starlit Night Stage]]
|Ev1-2Ex
|
|-
|[[Bunny? Niba! Thumpy Thump Reverse Bunny Trouble!]]
|EV2-5
|
|-
|[[Wolf's Fang of Fury]]
|Ev2-2Ex
|
|}