Deserted Beach, Fiery Islet, Frostboil Snarl, Furycalm Snarl, Stormcarved Coast, Sunbaked Canyon, and Sundown Pass are all included and make the mana base smooth as can be
This raptor lets you cast Dinosaurs for just three mana if youve dealt combat damage with a Dinosaur this turn
Its hard to say for sure, but we can make a deduction based on a few assumptions
If a card in a player's graveyard has in its mana cost, X is considered to be 0
Here are some highlights: Illuminor Szeras + Dross Scorpion + two of these three recursion creatures Junk Diver / Workshop Assistant / Myr Retriever = infinite death loop
Flash in some faeries on opponent's turns, and relevant tokens on your turn for maximum exile milling and free spells