Kethis is a legendary card in the MTG deck, which is one of the most powerful in the entire set. Its ability to exile cards to the graveyard is unique in this set, as it prevents legendary cards from looping. It can also swing in once per turn and lock out noncreature spells. It is also banned in Pioneer, but still legal in Historic.
Kethis, the Hidden Hand requires a legendary sub-theme and has an uncommon cost. This means that it requires a legendary sub-theme, which is difficult to find otherwise. While the card is an excellent match for other monsters in the MTG deck, it is a weak matchup against Enduring Renewal and other jank cards in the set. It is possible to find a similar card in your collection, but you must know what it does first before you can play it in your deck.
Kethis, the Hidden Hand is an extremely strong card in MTG. It is an excellent jank card but has a drawback - it does not reveal your hand. This is a major flaw in the game, and Kethis, the Hidden Hand is very close to that. The only way to make it work is to find a Legendary Sub-theme. And once you've got that, you can go ahead and play the legendary sub-theme. This is a fantastically powerful card in the MTG format, but there are some caveats.
Kethis, the Hidden Hand isn't a great choice for Lonis. It's too weak against the Abzan elf, but it's still worth considering for themed Lonis decks. Its combo list is similar to that of Haakon, Stromgald Scourge, but a more powerful deck would have a legendary sub-theme. This card can also be a