mtg double masters borderless cards Karn Liberated (Toppers) [Double Extended Art] Destroy target creature Gruul Turf | Double Masters

Credit: Wizards of the Coast Death in Heaven BPhillipYork: This is potentially pretty funny way to generate a huge cyber army, so if you want lots of creatures, lots of mill and annoying exile, and have effects that care about attacking with lots of artifact creatures it's a solid card

For example, Elspeth, Suns Champion could not be more of a staple in Standard, but at a mana cost of six, it will never see play in competitive eternal formats

Its also just solid disruption against cards you know your opponent is likely to have, like Fatal Push or Solitude

Of these seven, three are instant-speed, four are asymmetrical, and five hit all relevant permanent types

Finding useful cards with these alternate costs is pretty important to the format as well