Does Cull the Weak trigger Dreaming Tree's card draw ability when you choose a friendly unit at that battlefield?

Ruling: Cull the Weak does not trigger Dreaming Tree. Dreaming Tree only triggers when you target a friendly unit with a spell, and Cull the Weak does not target (the choices are made on resolution by each player, not when the spell is put on the chain).

Nuances:

• Dreaming Tree uses the word "choose" in its card text, but according to designer intent communicated to judges, this specifically means "target" despite the plain English reading suggesting otherwise
• The core rules define two types of choices for spells: targeting choices (made when putting the spell on the chain) and non-targeting choices (made on resolution), but only targeting choices trigger Dreaming Tree
• Rule 352.10.e specifies that choices made by other players (like in Cull the Weak) are not targets
• This ruling contradicts a strict reading of the card text and rules as written, but reflects the intended design and how it has been judged at official Riot events
• There is an official request for clarification in feedback channels to resolve the discrepancy between the plain text reading and the intended ruling