Editing Chain Attack

In this Final Smash, Shulk attempts to catch his opponent in front of him with a bright light (similar to [[Vision]]'s counter particle, except larger) while shouting "Dunban!", "Riki!", or "Fiora!" (in ''Ultimate''). If successful, the screen fades to white and a cinematic with the Vision effect around the screen appears as Shulk summons [[Dunban]], [[Riki]], and (in ''Ultimate'') [[Fiora|Mecha-Fiora]] to assist him. The party proceeds to attack trapped opponents before Shulk sends them flying with a charged Monado slash.

The Final Smash deals varying damage depending on which of Shulk's [[Monado Arts]] is set - overall, Buster deals the most damage and the lowest knockback, while Smash deals the best knockback but little damage (41%-55% for Buster and 15%-20% for Speed, Shield and Smash). The initial strike from the blinding light deals 3% damage (4% for Buster and 1% for Speed, Shield and Smash) and the attack deals 2% for each consecutive strikes (3% for Buster and 1% for Speed, Shield and Smash). The final Monado slash will deal 17% damage (23% for Buster and 9% for Speed, Shield and Smash), launching the target(s) horizontally. It is capable of KOing opponents at around 40% without any active Arts (20% for Smash, over 80% for Buster). The selected Monado Art, however, cannot be changed after the Smash Ball is acquired since pressing the special move button will start the Final Smash instead. In ''Ultimate'', Shulk can select an art if he uses a directional special and holds the special button, causing the Monado Art dial to appear; if the special button is released and pressed again, the Final Smash will occur.

Chain Attack has two (three in ''Ultimate'') variations; however, the only difference between them is the dialogue heard in the move:

*First, Shulk calls out either "''Dunban!''" ({{ja|ダンバンさん！|Danban-san!}}, ''Mr. Dunban!''), "''Riki!''" ({{ja|リキ！|Riki!}}) or, in ''Ultimate'' only, "''Fiora!''" ({{ja|フィオルン！|Fiorun!}}, "''Fiorung!''")

==Trophy==

Chain Attack has a trophy that only appears only in the Wii U version of ''[[Super Smash Bros. 4]]''.

|name=Chain Attack

|desc=In Xenoblade Chronicles, building up the party's team spirit would let them unleash a chain attack, using multiple Arts in a row to deal massive damage. In this game, Shulk's Final Smash calls party members Dunban and Riki to help obliterate an unlucky target...or multiple targets if you catch more than one in the circle of light!

All phrases spoken by Dunban and Riki during Shulk's Chain Attack in ''Super Smash Bros. 4'' are directly taken from ''Xenoblade Chronicles''. Notably, "On my mark!" is what Dunban can say when a Chain Attack is initiated by him in said game. As part of this Chain Attack, Riki uses his {{iw|xenoserieswiki|Lurgy}} Art, while Dunban performs two slashes in a similar manner to {{iw|xenoserieswiki|Worldly Slash}}, a physical art that involves a left-handed upward and downward slash combo.

Of note is that the Chain Attack featured in ''Ultimate'' showcases four characters in the party instead of three, which is impossible in the original game as the active party is limited to three characters.

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*Chain Attack and [[Mega Legends]] are the only Final Smashes to return from ''Smash 4'' which feature new characters added into ''Ultimate'' - in this case, Mecha-Fiora.

*This is the first Final Smash in the series that an [[Assist Trophy]] character appears in, namely [[Riki]]. [[ARMS Rush]] would later become the second.