Unless discarded by Thoughtseize, it just never dies and never stops applying pressure
The foray to the wild world of Warhammer 40,000 invigorated familiar creature types like demons, and it introduced a new one: tyranids
This is key, as during that player's end step, they can return a creature with a mana cost less than or equal to the number of experience counters they have from the graveyard to the battlefield
Did I even mention Concealing Curtains is a card you can play with Lurrus
Albeit, not that many collections will have a large amount of foils, especially foils that are from older sets, however foil picking shouldnt be discounted either
Atrocious Experiment, Circle of the Land Druid, Druidic Ritual, Summon Undead and even Colossal Badger all help set your graveyard up for other effects