Links

"Fu-Sion, HA!!!" - Goku and Vegeta

Linking is the process of enhancing a character with a separate copy of the same character. The process is based around transcendence line (The different "evolutions" of a character), rather than rarity. For example, If you had a Straw Hat Shanks (4-Star) and a Red-Haired Shanks (5-Star), you can enhance R-HS with SHS to increase his Link level by 1.

In addition to increasing the level, Links increase a character's stats by 3.5 per Link. This can be done up to Link-6, where the buff is 21 points to each stat. For example, Link-0 Kirigaya Kazuto (5-Star) has an HP stat of 194. In contrast, his Link-6 HP is 215.

The final benefit is the Link Skill. Link Skills are passive buffs that increase certain stats and/or moves. For example, Monkey D. Luffy (5-Star) has the Link Skill - Rubber Body - that reduces the physical damage dealt to him by 5%. It should be noted that only a handful of characters actually have Link Skills. The list currently includes: Monkey D. Luffy (All Rarities), Naruto Uzumaki (All Rarities), Ichigo Kurosaki (All Rarities), Sakura Haruno (TS) (5-Star), and Rimuru Tempest.