What are Switch Links?
Along with the normal strong buffs obtained from spell cards, skills, and passive abilites, every Friend has their own Switch Link Effect, which comes in 6 different flavors. Usually this coincides with their Friend type; offensive units will have Attack Links that boost offensive stats, speedy units will have Speed Links that increase Agility/Accuracy/Evasion, etc.
As their name suggests, Switch Links occur upon Friends switching in and out from battle. There are 2 different effects a Switch Link has, based on if the Friend switches in or out. Switching In has the Friend gain some of the viable buffs the other Friend procured during battle, while Switching Out has the Friend that leaves give some of their viable buffs to the Friend switching in. Exceptions occur for the Power, Shield, and Vital Links, but these are the general rules for these Switch Link Effects.
Along with the already-established effects, these buffs can be further improved thanks to Lore Bonuses. This is a hidden feature that (mostly) doubles the benefits of Switch Link Effects between 2 units and it is activated based on canon friendships and lore relations. The chance of it activating increases relative to friendship level, which eventually becomes guaranteed at Pink Heart friendship level. While we have no officially sent data regarding this, there is a community-made spreadsheet that contains information for all the currently released units.
Each section below will provide the effect of each Switch Link as well as all of the Friends who possess that link. Note that the values in parenthesis indicate bonuses from lore relations.
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