mtg fungus commander deck The Mycotyrant 4-Color Fungus Commander Precon :

Sapphire/Steel has some really broken cards in it (Dig a Little Deeper) and actually has a coherent strategy that doesnt contradict itself

And when you need to recast it, one red mana gives it haste for the turn

Gix Tempo Gix, Yawgmoth Praetor is essentially Mono Black Edric, Spymaster of Trest that has a slightly weaker card draw engine (you have to pay life) and weaker colors but instead comes with a built-in finisher, trading your individually weaker cards of 1/1 evasive creatures for actual haymakers and win conditions of your opponents' libraries

With four willpower and a Challenger +2 ability that gives her a challenging strength of four, Helga is one tough cookie

I say this because I know the vast majority of Commander players have a tendency of running far too few lands because it's emotionally harder to cut cool spells from your deck