Yes, if you have loads of X/1s and X/2s, no way to kill the Jitte and no way to kill creatures or prevent combat damage then the Jitte is going to ruin you
Sheoldred / The True Scriptures Sheoldred, like all the other Phyrexians this release, is a pretty standard rendition
The bonus of sacrificing Treasures to mass-pump all your creatures with two +1/+1 counters is strong, and this Mardu commander combines well with white cards and black cards with +1/+1 counter synergies
One of the most expensive Rare cards in Azurite Sea, Genie, Wish Fulfilled, is in high demand and for good reason
The options are endless, and Tiamat works wonderfully alongside an Omniscience to put those Dragons into play for free
It provides ramp, card draw, and board presence all at once and excels in typal decks thanks to the changelings it creates