Samut is a six mana Legendary Creature that costs three generic, one white, one red, and one green
Taking full value out of your spells is the best you can do in Modern at the moment
Defend the Hearth sees competitive metagame play in 1 format(s): Commander
Canoptek Tomb SentinelCanoptek Tomb Sentinel can get in some decent damage, but thanks to vigilance and it's ability to exile a permanent if it enters from graveyard, it makes for a decent deterrent for attacks
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