If I use Defy to counter a challenge triggered by Dreaming Tree, does my opponent still get the draw trigger from Dreaming Tree?

Ruling: Yes, your opponent still gets the draw trigger from Dreaming Tree even if you Defy the challenge.

Sequence:

• Dreaming Tree's ability goes on the chain
• You react to Dreaming Tree (not the challenge itself) by using Defy
• Dreaming Tree resolves and grants the draw because it's already on the chain and doesn't require information about the targeted unit