The Ur-Dragon's presence on the battlefield reduces the mana cost of your dragons and rewards you with card draw and free casting whenever your dragons attack
Like most Magic: The Gathering cards, the value of Voracious Greatshark depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Ikoria: Lair of Behemoths)
There are drawbacks to Hypergenesis as well, like needing to fill your deck with super-expensive cards that you aren't going to be able to cast fairly if your opponent can shut down your plan of cascading into Hypergenesis, which is a real risk in a format where Teferi, Time Raveler, Chalice of the Void, and Force of Negation are among the most played cards in the format
Once I have a combined augment and host, how does the game treat the combined creature
This 60-card deck kicks off with two Dual-Ink Holographic cards with Belle Mechanic Extraordinary and Beast Frustrated Designer