When playing a spell that affects multiple players (like Cull), who decides the order in which units are chosen - does the spell's controller choose their own unit first, or does it follow turn order?

Ruling: Unless the spell states otherwise, the player who cast the spell chooses their target first, then other players choose their targets following turn order.

Sequence:

• The spell's controller makes their choice first
• Then proceed in turn order for remaining players' choices