That is quite the step down lol but we get by here in the mid tier.
Optimal combos revolve around fitting b2 into the mix "somewhere." Whether it's your starter, or you hit with it after 111/b12/ b33 xx ex crushing hammer. I'd recommend saving freeze for the end of combos so you can try for resets (if you're sitting on more meter than the opponent). ... Cold-blooded xx ex ice blast, jip, f12 is +29. It may seem pricey, but keep in mind Kung Lao and Quan Chi use meter on block for far less advantage than +29.
F4 xx hammer is the only true block string he's got into hammer. It's possible to jump out or interrupt everything else. B33 and 12 both combo into hammer from a low for decent pressure and makes sure your opponent is at least awake. You'd think f33 xx hammer would work too, but sadly that string requires meter. F33 is -3 though, which is useful for baiting pokes and armoring through with ex hammer.
Slide after hammer hard knock down helps build meter and switches positions. You can safe jump jip after hammer hkd as well. Safe jump 1/2 > 111 will ironically armor break D'Vorah and Tremor wake up armor options, along with Predator.
After hammer HKD in the corner, cross over air hammer ruins reversal inputs, breaks armor, does decent chip and lands SZ back outside the corner (-2 on block). This is good for baiting pokes/ punishing with armor too. Jump over 2 works similarly in that it lands SZ outside the corner after crossing over.
Cryo, to me, is about space control, meter management and good punishment in that order. D4 (+17 on hit) launches his offensive and the character should be played at around that range. D4, f4, b12, 12 and raw hammer (deceptive range) control the ground. Ji3 (air to air, follow with f42 1+3) and D2, although slow, controls the air with its disjointed hitbox (hit high enough, you can often follow up with a slide or f42 1+3 in the corner). Know that breaking a combo is typically a bad move for this variation/ character, as you can likely do more damage to the opponent than they can do to you.
Hope this helps!