Mount Doom, a red-black land that hurts you when it makes mana, can also hurt your opponents and act as a board wipe if you sacrifice it and a legendary artifact (like The Ring)
This card is particularly good for Earthbending decks, especially if youre running Toph, the First Metalbender as your Commander, positioning artifacts as lands, and then dishing out counters on them
Dimir Informant, Dream Eater, Watcher in the Mist, and Whisper Agent all have enter-the-battlefield Surveil triggers
3 Glaceon ex Overwhelming The Opponent With Frigid Temps Glaceon ex may seem rather underwhelming at first glance in terms of how much damage it can deal to opponents, but upon closer inspection, it can actually be very useful for players looking for cards with a focus on strategy
You need plenty of lands to play spells but dont want to flood
This is true even if the ability states thatmust be paid with a certain color of mana, as Crimson Hellkite's ability does