Resonant Flag (inherited)

Resonant Flag is a Signifer in Xenoblade Chronicles 3. The user raises the War Standard above their head, and all party members are granted every which the user has.
==Overview==
This Art is half of the recipe to give the entire party a permanent buff (the other being ). It is alone in its niche — the only other means of copying buffs is via Interlinking, which can only be used to copy buffs from one character to a specific other character. As such, Resonant Flag is one of the most powerful Arts in the game when used appropriately. It is naturally best used on characters which will be receiving plenty of buffs, or the most important ones.
In the midgame, before rank 10 is reached, this will be a Signifer — the Art goes very well with and any Kevesi Master Arts which grant buffs. It does not have any particular synergy with , but using the two in conjunction doesn't hurt. s which grant buffs to the user, such as , go particularly well with Resonant Flag.
In more optimised setups lategame and postgame, the focus may switch from "flagging" large numbers of random buffs to focusing on more important, powerful buffs. The following are the strongest choices:
* can be obtained via the aforementioned Deflector Field or via Interlinking with a Seraph. (Resonant Flag cannot be used as a Seraph, as it is an Agnian Master Art.)
* can be given to by having use Unlimited Sword and immediately Interlinking. (It can also be given to a flagger via Power Raiser (Defender), albeit at the opportunity cost of being Lucky Seven (Defender)). As Invincible only lasts for 10 seconds at base, buff-duration-extending effects are vital for effective use (see below).
* Power Charge does not expire over time. As long as a flagger uses no offensive Arts and does not become Incapacitated or otherwise lose their buffs, they will be able to grant the entire party Power Charge every time they use Resonant Flag as long as they can get it once. If the original source of Power Charge has its effect enhanced by Swelling Blessing and/or Strength Support, this stronger effect will carry over whenever Resonant Flag is used. To avoid the flagger losing the buff by using it, it is recommended to only equip non-offensive Arts (possible on the Signifer and War Medic es).
* Armor Veil, like Power Charge, does not expire over time, so in theory a flagger can continuously provide it to the party, drastically increasing survivability. In practice, it is very difficult to entirely prevent the flagger from getting hit and exhausting the Armor Veil.
The remaining duration on all buffs is copied over to the recipients, so flagging a buff about to expire will result in it applying to the other characters for a very short time. Refined Blessing, I've Got Your Backs, and Strengthening Gambit naturally help to mitigate this. For the most powerful, difficult-to-obtain buffs, it is recommended to use Pause Buff Timer (possibly in conjunction with Unceasing Blessing) to ensure that the buffs can be maintained indefinitely.
Unlike Arts that grant buffs by normal means, Resonant Flag never overwrites buffs that the recipient is already carrying, ignoring the usual rules of buff replacement.
The fusion bonus on this Art is assumed to have no effect; it does not appear to affect the duration of the copied buffs.
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