Both were created to balance some of the other Pokmon types in the game
Ultimately you're looking to survive until you can drop a Living DeathLiving Death or Ghost ArkGhost Ark with a full graveyard or clear out your opponents' forces with Their Name Is DeathTheir Name Is Death, but you can occasionally get some surprise kills by putting Cranial PlatingCranial Plating on Szarekh
The former could hit cards like Birthing Pod, Cryptic Command and Splinter Twin all of which were important, but the latter was better versus Burn and Zoo, and also back then manabases were a lot more painful as decks were more reliant on Shocklands, which meant a turn one Thoughtseize commonly saw you at 15 life from the get-go
If using cardstock, choose a heavier paper type setting to ensure proper ink absorption and prevent smudging or bleeding
Aside from casting some big fatties, you want to use your resources to also keep filling up your hand
While I have cut all of those cycles from my cube this is for space reasons and not due to lack of play