4-2 Machine

I've been an advocate against worldbearer behemoth for a while; in decks that don't run mystic ascendant it's bad against everything that isn't also time midrange. Against aggro it's slow, against aggro midrange like argenport or TJP it's a 5 drop that doesn't immediately do anything and is easily removed or flown over, putting you at a massive disadvantage, and against control it's almost always a 1:1 minus tempo when it's inevitably removed. Compare it to the 6 drops. HotV shoots something and draws a discounted card at minimum, it's always at least a little tempo and another card of value. Carnosaur is less reliable value but can be a massive tempo swing and answer to troublesome units; against blockers it effectively has charge by allowing you to apply pressure with the rest of your board. Obviously behemoth costs 1 less than those but in a deck where turns 4-6 are your key stabilization and pressure moments, I think 4 is the maximum you can pay for a card that neither has an immediate impact nor has resilience against removal. Admittedly, sauropod is not a perfect replacement as it suffers from the same issue of having no immediate effect, and it's easily the most cuttable card in the deck. However, the fact that it has echo is kinda like it having aegis in that it's much more resistant to being removed. It's the first thing I sideboard out against any deck that's not control, but it's a fine filler card which crushes harsh rule decks with dawnwalker recursion and often provides the last bit of gas you need against faster decks to finish them off. Not to mention if you happen to hit it with a firemaw or hotv reduction you usually win on the spot. If you dislike it, feel free to try swapping it for a firemaw, carnosaur, shatterglass mage, or something else, but I strongly advise against using behemoth in its stead. In its current form, this deck is tuned to have a favorable winrate vs argenport and an okay one vs TJP while still crushing control as a praxis deck should. If you're seeing a lot of time decks where you'd want the behemoths, there's probably a better deck to play anyway.