mtg clever concealment final fantasy (Surge Foil) Marvel Super Heroes Commander Clever Concealment Instant Convoke (Your creatures can help cast this spell Clever Concealment | Marvel Super

Theyre one of blacks characteristic creature types, which means they show up in just about every new MTG set

Adventurer's Inn Balamb Garden, SeeD Academy Baron, Airship Kingdom Capital City Clive's Hideaway Crossroads Village Eden, Seat of the Sanctum Gohn, Town of Ruin Gongaga, Reactor Town Guadosalam, Farplane Gateway Insomnia, Crown City Ishgard, the Holy See Jidoor, Aristocratic Capital Lindblum, Industrial Regency Midgar, City of Mako Rabanastre, Royal City Sharlayan, Nation of Scholars Starting Town The Gold Saucer Treno, Dark City Vector, Imperial Capital Windurst, Federation Center Zanarkand, Ancient Metropolis

The one from Guilds of Ravnica, Niv-Mizzet, Parun, is the best of them overall

Not only does this remove a threat from play for at least one turn, but it allows you to play an extra, high-cost card and potentially close the gap between you and an opponent