Alternately, if your deck plays discard or countermagic, just wait the extra 1-2 turns to play your important threat with mana up for a same turn TS or Spell Pierce
Specifically, unless Space Beleren's first loyalty ability has been activated, sector assignments have no effect on combat
We can only afford 3 Game Changers anyway, and the choice of 1 mana tutors or moxen is taken away, leading to our inclusion of Deflecting Swat, Demonic Tutor, & Jeska's Will as more obvious than they'd otherwise be
Goblins have their Conspicuous Snoops, green tribes have their Allosaurus Shepherd, zombies get to run cards like Zombie Apocalypse, etc
Samut is a six mana Legendary Creature that costs three generic, one white, one red, and one green
That means you can afford to splash out a little bit more in black for cards that provide options and won't ever be dead weight in hand (obviously once you can cast it, everything with a cost can be dead when you can't pay it...)