Go in game, grab Spirit of the Elder Lizard and go into the jungle, see what true damage you do on jungle creeps, go to a minion and see how much true damage you do, compare.
I think she's saying that Spirit of the Elder Lizard already has the butcher effect.
You said:
"Tested when I noticed I did more true damage than usual when using Spirit of the Elder Lizard on Lee (extra 3-4 damage each tick)."
Which might have Satella confused that you buy an other item to give it increased damage output.
But... the true damage also applies on champions, thus would not always apply the 25% bonus damage from the butcher effect.
If the butcher effect would work on true damage :P
I am still not sure about the answer :(
But because the butcher passive is also on the same item, the "usual" would be exactly the same even assuming true damage is amplified by butcher, and you bought a second item. What exactly are you comparing it to?
Found it after a bit longer search than usual :D
You are right, thank you :D
Tested when I noticed I did more true damage than usual when using Spirit of the Elder Lizard on Lee (extra 3-4 damage each tick).
Doesn't work with Smite though.
You said:
"Tested when I noticed I did more true damage than usual when using Spirit of the Elder Lizard on Lee (extra 3-4 damage each tick)."
Which might have Satella confused that you buy an other item to give it increased damage output.
But... the true damage also applies on champions, thus would not always apply the 25% bonus damage from the butcher effect.
If the butcher effect would work on true damage :P
I am still not sure about the answer :(