KOONBOAT

{b}{r} summon imp (place a 1/1 koonboat's imp token)
{x}{b}{b} summon spiders (place x 1/1 koonboat's spider token)
{x}{w} summon twins (place x 1/1 koonboats twin token's)
{7} summon spider cannon (place a 3/9 koonboats spider cannon token)