The Trap "Metal Reflect Slime" can Summon itself onto to the field with 3000 DEF which is hard to overcome as there aren't many monsters in the game that have a ATK with 3000 or more
The cards are exciting, the idea for the Illumineers Quest was innovative and appealing to a broad range of players/collectors, and extra touch went into this sets Trove to make it ultra themed to the set
That said, its no slouch in the stats and abilities areas either
Dowsing Device / Geode Grotto The Dowsing Device side of this does a lot in an artifact aggro deck, and if you flip the Geode Grotto you get a lot of potential finishing options, especially in decks with lots of artifacts and a Rogue's Passage
The only one confirmed so far is squad , an additional casting cost that lets you copy a creature for as many times as you can pay the squad cost
In case youre wondering, this card was released in the Two-Headed Giant Battlebond set, and the idea was that you and your partner could team up and fight your own Grothama to cash out on extra cards