If your other cards are good at deffensive, sheitane is all you need. She is sure pill consuming, but she may make 7 damage without further help. And she may daraw away a crucial soa.
If you are not that good at defence Hel is better option for sure, because she is less predictable, and generally less considered as a theat.
Not real sure why you are doing 28 pillz. ELO is 25 pillz as is type 1 and type 2 has no set pill limit with the exception that it has to be over 26. Why 28 pillz? That is where I am lost and can't really help any further w/o that knowledge.