yugioh crystal beast cards from the archetype and related ones. The Crystal Beasts made their first appearance in the Yu-Gi-Oh! GX anime, used by Jesse Anderson Trap Zones Yu-Gi-Oh! Wiki - Crystal Release

Kill any critter with two or less toughness regardless of regeneration or indestructibility, and then have the Ring tempt you

For example, Huatli's Dinosaur themed deck you had more Dinosaurs being printed, but there weren't any new lords or must-grabs like this

Having too few tutor targets can make your tutors useless, while having too many can dilute the effectiveness of your deck

Illuminor Szeras is the best option if you want to shift the focus of the precon towards a Sacrifice / Aristocrats angle: he functions as a fantastic sacrifice outlet, generating tons of mana while getting those sweet death triggers and putting bodies in the graveyard