Glossary
The guides name a game system only where the game itself puts a name on screen. This is what those names mean. Every one of them is linked from the pages that use it, so you can hover the term there instead of coming here.
Bond of Life
A Bond of Life is a red section laid over a character's health bar, worth some percentage of their Max HP. Any healing they receive goes into clearing it first, so a healer looks like they are doing nothing until it is gone. Nothing else about it hurts. It is not damage over time and it does not drain on its own.
The characters who have one get paid for carrying it. Clorinde loads hers up with pistol shots then spends it on a lunge that heals her back. Arlecchino turns hers into Pyro damage. Sigewinne hands them out to the whole party on purpose. For those three a full red bar is the goal rather than a problem to fix.
Infusion
An infusion converts a character's Normal and Charged Attacks to an element, usually for a few seconds after a Skill. The numbers on the attack do not change, but every swing now applies that element, which is what lets a physical character trigger reactions.
Most infusions cannot be overridden, so a Pyro infusion plus a teammate's Hydro on the field means Vaporize on every hit rather than an argument over which element wins.
Interruption resistance
Getting hit normally interrupts whatever you were doing, which is how a long Charged Attack or a slow combo gets cancelled halfway through. Interruption resistance means the hit still lands on you but the animation carries on.
A shield gives it. A few characters hand it out on its own. It is worth most to a character whose damage sits at the end of a long swing.
Lunar reactions
A handful of Nod-Krai characters carry a passive that rewrites one reaction for the whole party. Electro-Charged becomes Lunar-Charged, Bloom becomes Lunar-Bloom, Hydro-Crystallize becomes Lunar-Crystallize. The conversion is automatic and covers reactions any party member triggers.
A lunar reaction hits harder than the one it replaced. The character who provided the conversion adds their own scaling on top: Max HP, Attack or Elemental Mastery depending on who they are. The team still has to produce the base reaction, so the elements matter as much as the passive does.
Moonsign
Every character carrying the Nod-Krai moon mark raises the party's Moonsign by one level. One of them on their own leaves you on the lower tier. Two puts you on the higher one, which the game calls Ascendant Gleam.
It matters because those characters read their own passives off it. Nefer gets no seeds below the higher level, Jahoda's flask stops being an off-field applier, Zibai loses most of her meter. When a page tells you to bring a second moon character, this is why. Any of them will do.
Nightsoul
Natlan characters have a Nightsoul meter alongside their Energy, shown as a ring around the portrait. Pressing the Skill usually spends it to enter the Nightsoul's Blessing state, which is what turns their attacks into the special versions and unlocks the extra buttons. The meter drains while the state runs, so it is a timer as much as a resource.
How you refill it is the part that differs per character. That is the half worth reading on their own page. Some get it back from their own attacks, some from reactions, some from picking things up out of the Natlan overworld.
Phlogiston
Inside Natlan a character in the Nightsoul state burns Phlogiston rather than Stamina for the region's climbing, gliding and sprinting. It refills on its own once you stop spending it. Various Natlan plants and objects top it up as well.
It never comes up in combat, so a page mentions it only where a character is unusually good at getting around.
Resistance shred
Enemies carry a resistance percentage per element. Some of them are built specifically to resist the one you are attacking with. Stripping it off is worth roughly as much as an equivalent damage bonus. Because it is a separate multiplier it is worth more the more buffs the team already has.
Viridescent Venerer is where most players meet it, since a swirl with that set on strips resistance to the swirled element. Several characters do it in their own kit as well.
Something explained badly, or a term missing? Tell me.