A mana is still pretty cheap and the ability to do it multiple times makes it a far better late game engine with things like the Carrion Feeder or Skullclamp
The Necron deck is the cheapest of the four Warhammer decks right now, so it makes the list: Magic: The Gathering Universes Beyond: Warhammer 40,000 Commander Deck Necron Dynasties- 42.33 at Amazon (was 70) Magic: The Gathering Universes Beyond: Warhammer 40,000 Commander Deck Necron Dynasties- $80 at Amazon US (was $94) The Brothers War Retro-Frame Commander Deck - Urza's Iron Alliance This is a really cool Commander deck that features 100 cards all with retro-style frames which should stand out at the table
Focus on outing short and mid-term specs that have ripened past my loose limited greed limits, turning dozens of sub-$100 cards into bigger, potentially more liquid pieces that help keep my collection trim and consolidated
The exiled card gains 'The player who controls the permanent that exiled this card may look at this card in the exile zone.'" Any player who has controlled a permanent with a hideaway ability since a card was exiled with it may look at that card
Tato Farmer is both a mill enabler and can ramp you every turn, so long as you mill some lands
I could see a version of a spells deck that uses these cards, especially with a meme-y style, like a full-on Universal Horror Mad Scientist Laboratory thematic