Sinister Hideout - Magic: The Gathering | Marvel's Spider-Man (Common) [SPM-184]

Sinister Hideout enters the battlefield tapped, meaning you won't be able to use it for mana on your first turn after playing it. When you do tap it, you can generate either one blue mana or one black mana, making it flexible for decks that utilise either colour. Additionally, for a cost of four mana and tapping the land, you can activate its Surveil ability, allowing you to look at the top card of your library and decide whether to keep it on top or put it into your graveyard, which can help you filter through your draws to find key cards. You'd want to include Sinister Hideout in a deck that needs both blue and black mana, especially if you benefit from the Surveil mechanic, like in graveyard-focused strategies. However, its downside is that entering tapped slows down your early game tempo, and it doesn't provide immediate mana advantage since you can't use it on the turn you play it.