If the target of a spell affecting The Dreaming Tree becomes invalid when the spell resolves, do you still draw a card?

Ruling: Yes, you still draw a card. The Dreaming Tree's ability goes on the chain when you target, not when the spell resolves.

Sequence:

• When you target with a spell, The Dreaming Tree's ability triggers and goes on the chain
• The Dreaming Tree's draw resolves before the spell that triggered it
• Whether the target is valid when the spell resolves does not matter for the draw