Is there an existing issue for this?

• I have searched the existing issues

Observed behaviour

Casting the Martyr spell on a Summon Spirit Bear results in the Martyr counter showing remaining duration, but the Spirit Bear still takes damage (instead of the caster).

This is also true if casting on a Iron Golem, a Cow, or other summoned minions.

Expected behaviour

I expected the Martyr spell to be useful when trying to protect friendly/neutral/passive/summoned mobs.

As it stands currently, it's only useful when working with another Player.

Steps to reproduce

1. Join a Server
2. Cast Martyr on Iron Golem (or summoned minion or neutral mob).
3. Notice the lack of effect when Iron Golem is damaged (even though a counter shows Martyr being active)

Crashlog

No response

Environment (Singleplayer/Server, etc.)

Issue present on both sides

Mod version

1.5.10

Forge version

1.12.2-forge-14.23.5.2860

Other mods

No response

Also, NPC Wizards should not be able to cast this, nor should it work with Dispensers.