Super All In! — Ruling

Effetto 1

This card's effect that returns a Synchro Monster on your field to the Extra Deck, Special Summons 4 "Flower Cardian" monsters from your Graveyard, and draws a card is the effect applied when this card's activation resolves. (It does not target.)
Returning a Synchro Monster from your field to the Extra Deck and Special Summoning 4 "Flower Cardian" monsters from your Graveyard do not happen simultaneously with drawing 1 card and showing it, and neither happen simultaneously with Special Summoning the drawn card if it is a "Flower Cardian" monster or destroying all monsters on your field and halving your Life Points if it is not.

This card's effect that adds a Spell/Trap Card from your Graveyard to your hand is an effect that activates in the Graveyard. (It does not target. It can be activated optionally during the End Phase of a turn this card was sent to the Graveyard by a "Flower Cardian" monster's effect.)