2 Birds of Paradise Green has lots of small creatures that can tap to produce mana, known informally as 'mana dorks', but Birds of Paradise is by far the best one
Red removal spells such as Lunge and Shock Troops were turns too late to keep the Bouncer offline, and so a smart player could basically keep his Bouncer around indefinitely, use it to dominate the board, and ride it straight to victory
It's infamous for being the only colour that wields Counterspell effects - a way to say 'no' to anything on the stack
The last, Edge of Eternities , dabbles into science-fantasy themes and cosmic technologies
They often stick around longer than creatures or artifacts , so theyre good for ongoing effects
If I am playing a Landfall deck, that number would be higher