Liliana is weaker than a lot of the other discard outlets here as a pure discard outlet, she costs three total mana, the discard is sorcery speed and doesn't come with a free card draw
(Create a colorless Clue artifact token with ", Sacrifice this artifact: Draw a card.") Activated abilities of artifacts you control cost less to activate
If this is your style, stick to your big old-school collections
Companion Games produced the Galactic Empires CCG (the first science fiction trading card game), which allowed players to pay for and design their own promotional cards, while TSR created the Spellfire game, which eventually included five editions in six languages, plus twelve expansion sets
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Also, don't sleep on that last ability either