Forum:Samsara lotus as a tribute for yubel

Since samsara lotus can return from the graveyard to the field in the end phase if you don't control any traps or spells, and yubel (first stage) requires you to tribute one monster during the end phase, can you choose to activate samsara lotus effect first in the end phase and then tribute it for yubels effect later in that same end phase? Or Will yubel be destroyed by its own effect as soon as you enter the end phase without a monster to tribute for her effect? (Is tributing a monster to keep yubel alive considered a cost or a part of her effect?)

Also, thanks to those who have answered my previous questions here. Didn't want to bump a thread just to say thank you :)