Valen Rudor

If a squadron is at distance 1 of a ship equipped with Instigator and is engaged with Valen Rudor and no other squadrons, that squadron cannot attack Valen Rudor but may attack the ship equipped with Instigator or any other ship at distance 1.

If a squadron is at distance 1 of a ship equipped with Instigator and is engaged with Valen Rudor and only engaged with squadrons with heavy, that squadron cannot attack Valen Rudor but may attack the ship equipped with Instigator or any other ship at distance 1.

If a squadron is at distance 1 of a ship equipped with Instigator and is engaged with Valen Rudor and one or more non-heavy squadrons, that squadron cannot attack Valen Rudor, the ship equipped with Instigator, or any other ship at distance 1.

Reference

If a squadron is at distance 1 of a ship equipped with Instigator and another enemy ship, that squadron may attack either ship if it is not engaged with any non-heavy squadrons.

Reference

An enemy squadron engaged with another squadron cannot perform a counter attack against Valen Rudor.

If an enemy squadron is engaged with Valen Rudor and ALSO engaged with another friendly squadron (even if that squadron lacks Escort) the enemy squadron CANNOT attack Valen Rudor.

If an enemy squadron with snipe is engaged by another friendly squadron at distance 1, and Valen Rudor is within the distance 2 range band. You cannot snipe Valen Rudor.

In regards to Instigator and Valen Rudor: If an enemy squadron is at distance 1 of Instigator and engaged with Valen Rudor, Instigator’s “ghost” squadrons prevent the enemy squadron from attacking Valen Rudor. However, if a squadron has no other valid targets, they can attack a ship (in this case, Instigator). Because a squadron must attack a squadron “if possible” before attacking a ship.

Valen Rudor cannot be attacked by the IG-88s if they are also engaged with other enemy squadrons. As Valen Rudor “cannot” be attacked due to his card ability.