Calligrafia Intermedia

A creature that is equipped is considered modified no matter who controls the Equipment that's attached to it.

A creature with a counter on it is considered modified no matter what kind of counter it is or which player put it on that creature.

An Aura controlled by another player does not cause a creature you control to be modified.

If you lose life during a turn before Intermediate Chirography has its level 2 ability, that ability won't trigger that turn even if you lose life again later in the turn.

Intermediate Chirography's level 2 ability triggers just once for your first life-losing event on each turn, no matter how much life you lose.

Intermediate Chirography's level 3 ability will check as your end step starts to see if any modified creatures died under your control this turn. If none did, the ability won't trigger at all. It's not possible to cause creatures to die during your end step in time to have the ability trigger.