There is a bug where if a Warden attacks any illager in front of a group of illagers, they do not retaliate, and simply ignore the Warden itself.

Reproduction steps

1. Spawn a group of illagers, any of them (Illusioners, Pillagers, Vindicators and Evokers.)

2. Insert a Warden.

3. Wait for it to sense any noise that one of the illagers makes (e.g firing a crossbow, murmuring, moving, etc.)

4. The Warden should take notice, then take notice angrily. It should roar and rage, and kill the illager in front of them.

5. Upon seeing the illager get killed in front of them, they should retaliate, but they don't. It appears that illagers do not act like wolves, Piglins, both conventional and zombified, or bees when they see one of their own species getting killed by a Warden in front of them.