B · Engine & Sequencing · §11
Eighteen lands, two colours, and a green card that never asks for green.
The deck asks for red on turn one and blue by turn two, and nothing else. Ten fetchlands find three and three .
is printed with a Phyrexian green mana symbol, which can be paid with two life instead of green mana. That is why a two-colour deck runs a green card and needs no green source at all. The cost is life, and §4 explains why that is not free.
One of each. The Islet becomes a card in a long game; the Falls costs a tempo and surveils. Play the Falls on a turn you were never going to cast two spells, and not otherwise.