Top end is mostly valued on its ability to win games and this doesn't perform well there
Savage Ventmaw becomes absurd with Anzrag
However, if you instead pay the one generic and one green, and also the kicker cost of two generic and one green, you will have kicked Gnarlid Colony, and its additional ability of entering with four +1/+1 counters comes into effect
Gandalf the White will double such cards' triggered abilities based on entering or leaving the battlefield, which can generate tremendous advantage in the right decks
The deck also features a number of other creature kill effects to subdue your opponent, counterspell effects, and other mill effects to speed up your win
On average, players maindeck roughly of their fixing lands, with the remaining being off color. A survey of over 75,000 deck lists drafted from more than 5,600 unique cubes on Cube Cobra can shine some light on how many fixing lands end up maindecked and how many languish in sideboards