u/AkuTenshiiZero

Just wanted to clarify how this game handles multiple effects triggering at the same time. For example, I'm putting together a Fantasia deck and I was wondering what happens if I play Yen Sid while I have Magic Broom (Illusory Keeper) in play? Yen Sid says to draw a card if I have a broom in play, and the broom says to sacrifice it to draw a card when another character is played. Is there any rule as to which effect resolves first, or can I choose to resolve Yen Sid and then the broom?