yugioh regenesis deck is an archetype of 2500 attack or defense monsters which require either to have a 2500 attack or defense monster to revel from hand or on fire in order to summon Regenesis - Alliance Insight -

It is a Water card illustrated by kirisAki

If you enjoy Ancient Box archetypes, you can also take advantage of "baby" Roaring Moon TEF 109

Playing Mufasa - Ruler of Pride Rock requires the inkwell to be completely exerted even if it has more than eight cards in it, and two have to be chosen at random to return to the player's hand

Additionally, if either player controls a face-up "Doomcaliber Knight", it will immediately Tribute itself and add a Chain Link onto the chain with "The White Stone of Legend", as its Quick Effect is mandatory

Infrequently you will have had a bad draw and lost the tempo thus being unable to cast this as it will help your opponent kill you faster but in such situations you have probably lost regardless of the dead card