It might be challenging to use with certain Dinosaur decks lacking level five monsters, but with how splashable it is, it can still easily be used in many other decks
Luckily, there are plenty of mana rocks in this precon deck, ranging from Thought Vessel, Hedron Archive, Thran Dynamo and even a Gilded Lotus to generate lots of mana and serve as attackers thanks to Bello
Kaust is a 2/2 Dryad Detective for just two mana (one green and one red/white hybrid, which can be paid with either color) that draws you a card when you deal combat damage to a player with a creature that was turned face up this turn
The Bargain mechanic will add enough mana to use this Dragon's damage-dealing ability twice up front, great for picking off flying defenders or even taking out low-loyalty Planeswalkers
Large enought to fit 4-5 coins inside (or 2 keys)