So, the other day I was playing Gothitelle against my friends Jumpluff deck. He attached a rainbow energy to Roserade, so I was poisoned and confused. We both had full benches, so his Jumpluff did 120 to my Gothitelle, and with the poison damage he sayed I was knocked out. However, I had Serperior #6 on my bench. I thought, because it says at any time between turns, you could heal the ten before the poison damage. Just wondering who was right, does poison happen before the heal?