During our last EDH night, something unexpected happened. Namely, Gisela, Blade of Goldnight was already out on the battlefield as I played the Ghosts of the Innocent. We wondered how their interactions should have worked. Gisela doubles the damage rounding it up, and the Ghosts halve it, rounding it down. Both are replacement effects, so the stack doesn't apply, right? I thought that the famous "time stamp" is what determines the order of the replacement effects in this case, so the Ghost's is applied before Gisela's.
So, let's say that Gisela attacks: she should deal 5 damage, which become 5/2 = 2,5 := 2 and finally 2*2 = 4. Conversely, if I attack the Gisela player with my Celestial Kirin (yes, he was my general ), it will deal him 3/2 = 1,5 := 1 damage, of which 1/2 = 0,5 := 1 will be prevented, so 0 damages in total (whoa). Is this the right interpretation?
Both are replacement effects that try to modify the same event. As such, the affected player or controller of the affected object (or its owner if it doesn't have a controller, though that's not relevent in this case) chooses one to apply. And then chooses one among whatever remaining replacement effects are applicable afterwards. And so on until there's no more applicable effects to the modified event. Then that modified event happens. So in this scenario, the player taking the damage chooses either Gisela's or the Ghosts's effect to apply (rounding appropriately), then applies the other effect, then takes the damage. Time stamps don't matter, neither does control of the effects' sources.
During our last EDH night, something unexpected happened. Namely, Gisela, Blade of Goldnight was already out on the battlefield as I played the Ghosts of the Innocent. We wondered how their interactions should have worked. Gisela doubles the damage rounding it up, and the Ghosts halve it, rounding it down. Both are replacement effects, so the stack doesn't apply, right? I thought that the famous "time stamp" is what determines the order of the replacement effects in this case, so the Ghost's is applied before Gisela's.
So, let's say that Gisela attacks: she should deal 5 damage, which become 5/2 = 2,5 := 2 and finally 2*2 = 4. Conversely, if I attack the Gisela player with my Celestial Kirin (yes, he was my general ), it will deal him 3/2 = 1,5 := 1 damage, of which 1/2 = 0,5 := 1 will be prevented, so 0 damages in total (whoa). Is this the right interpretation?
Former Rules Advisor
"Everything's better with pirates." - Lodge
(The Gamers: Dorkness Rising)
"Any sufficiently analyzed magic is indistinguishable from science."
(Girl Genius - Fairy Tale Theater Break - Cinderella, end of volume 8)