pokemon cinccino card 1605/07 Gem Pack Vol. 4 Master Ball Holo Chinese – Card & Ink Colorless Colorless Slap (40) Colorless Cinccino SV094/122 - Shiny Vault

My only concern is that it lacks the tutoring or card advantage of black or red decks so might fall a little less consistent

A good example of this is Cremate from Return to Ravnica

You could make the argument that MTG cards are so expensive today because they have always been rare

Also, while both cards will force everyone to play with the top card of their decks revealed, The Lantern of Insight also has the added ability of allowing you to sacrifice it and force a player of your choosing to shuffle their deck

When a card is good, but not good for the game, it has lost this balance

When to Sideboard a Land In or Out You could try boarding out a land on the draw in all sorts of decks, including 18- and 19-land decks