Legality depends on the tournament format -- Sudden Shock can be legal in some formats and banned or restricted in others
Nyla, Shirshu Sleuth's second ability has an "intervening 'if' clause." That means the ability won't trigger at all unless you control no Clues at the beginning of your end step, and the ability will do nothing if you control a Clue by the time it resolves
Since we know small card advantage is not going to cut it in the present world, it seems like a reusable Lilianas Triumph is the best bet
Theyre especially powerful in Commander, a format with long games and an emphasis on mana production
(2025-07-25) Icetill Explorers second ability doesnt allow you to activate abilities (such as cycling) of land cards in your graveyard
Cool collectors cards should be just that, fun things to collect, not things that people feel that they need to have to play the game