mtg draw a card for each creature you control Apothecary Stomper Draw a card for each permanent you control of that type. Shamanic Revelation · Commander 2021

Vial Smasher the Fierce specifically triggers off of the mana value, and his Simic Partners in crime either provide a mana sink or ramp to help push the game along

Certainly, the abilities here are great, but it's really the star power that makes Nicol Bolas so popular and earns him the number one spot on our Elder Dragon list.

rampage 2 (Whenever this creature becomes blocked, it gets +2/+2 until end of turn for each creature blocking it beyond the first.) This creature cant be blocked except by three or more creatures

With Prince Phillip having Support himself, you can essentially read his ability as "give another character +1 Strength and +1 Resist whenever this character quests"