The Pokemon Trading Card Game adapts the countless trainers into Supporter cards which all have powerful game-changing effects, but only one Supporter can be used per turn
Since creatures keep their abilities, it can be powerful in concert with cards like Tetsuko Umezawa, Fugitive and Crovax, Ascendant Hero
A similar dynamic exists with any other one-mana interaction like Stubborn Denial and especially Spell Snare, but even without another option for that opening mana, waiting to see what your opponent is playing can inform your cantrip
As the 2nd true flip Planeswalker on both sides (Garruk Relentless into Garruk, the Veil-Cursed was the first), Arlinn offers a lot of options
Trazyn the Infinite + Mana Rocks + Staff of Domination The dream is Trazyn the Infinite copying a mana rock like Gilded Lotus in your graveyard, then using Staff of Domination to untap Trazyn and do it again for infinite mana, which Staff then turns into your whole deck or infinite damage
played: 3.003.000000000 6% of decksPercentage of decks that could play both Channel the Bleak Expanse and Icy Encounter (Red) that play both