You can banish 1 Level 5 or higher monster from your Graveyard; Special Summon this card from your hand, also you cannot Special Summon monsters from the Extra Deck for the rest of this turn. If this card is Tributed for a Tribute Summon: You can look at all Set cards your opponent controls. Your opponent cannot activate cards or effects in response to this effect's activation. You can only use each effect of "Lucius the Shadow Vassal" once per turn.
Restricts you from using your extra deck for the rest of the turn.
Because your opponent cannot activate cards in response to Lucius’ effect, your tribute summoned monster will be protected from cards like Floodgate Trap Hole and Paleozoic Canadia. Additionally if your monster has an effect that activates upon summoning, it will be protected from cards like Forbidden Chalice.
After looking at your opponent’s set cards you can then appropriately use removal for problem cards. Use cards like Nobleman of Crossout or Nobleman of Extermination to deal with set cards. Use Anti-Magic Arrows or Hey,Trunade! to deal with battle phase Traps.
Discarding Thunder Dragon is a good way of loading your graveyard with cost for special summoning Lucius while also thinning your deck.
Some monsters can destroy your opponent’s cards upon summoning. Use Lucius to tribute summon into them to know what you are destroying. Or to know what kind of monster you are attacking into and what backrow your opponent has in place.
dont be so pessimistic, my friend. These guys, these duel links devs are kinda slow fellas bcuz they are always delaying releases. But I definitely think they are going to give us Caius. Awesome card but not too dangerous for DL.
...That isn't pessimism. That's a "there is no hint that Caius is coming whatsoever". I have no opinion on Caius one way or the other. There's just no HINT of its impending arrival, let alone it being "pretty much confirmed". It'd be like me saying Ancient Gear Hydra is practically confirmed. Except I'd have more credence in that case, since we at least know an Ancient Gear Structure is coming.