Replace

Replacemodel is a command used to change the models of two models permanently. It is primarily used for making flashy attack models and changing unit portrait without having to attach a new actor to the unit.

Replacemodel triggers it

The first word is the model you’re replacing. While the second word is the model you’re replacing the first with.

Replacemodel weaponhybridd psistrike

This changes the weapon ‘HybridD’ to an orange blob of energy

Replaceeffect is a command used to change the effect of a certain aspect of a unit/ability/behavior/effect to something else, so when triggered it will play something else

For example you can replace the claws of a zergling to the be the dark templar shadow fury. Replaceeffect should not be confused to replacemodel which will replace the model of something when created (pretty obvious) it's usually a good work around for the broken protoss beacons and getting scvs/ravens to create beacons in good patterns.

replaceeffect usually goes into two parts:

Replaceeffect triggers it

The first word e.g claws will be the thing you want to replace

The second word e.g stimpack will be what you're replacing the first word with

Replaceeffect claws darktemplarshadowfuryapply