Does Cherubi's "Lively Fruit" Ability prevent an attack from moving or placing damage counters?
In the steps of resolving an attack, moving or "placing Damage Counters" counts as an Effect of the attack; it is not part of "doing damage". Therefore, as an Effect it would be prevented by Lively Fruit.
Source: Brilliant Stars FAQ; TPCi Rules Team (2022-02-24)