Card Rulings talk:Snyffus

If DNA surgery is active on the field and all face up monsters on the field are declared to be "Plant" type, Snyffus can now tribute itself activate its first effect. It destroys a face up plant type monster (due to dna). Since it was offered as a tribute to activate its effect it is in the graveyard as a cost regardless of whether the effect goes through or gets negated. Because its in the graveyard due to tributing itself, and destroys a plant type monster via effect, can it in the same turn special summon itself to the field with its second effect. Conditions are all met, I am just confused about the timing.