In Vivis current Cauldron variant in Standard, its rather common to have some leftover mana once you establish a Vivi under Agathas Soul Cauldron
Its Ability, Seasoned Skill, allows trainers to knock off one energy cost off its only attack, Blood Moon, based on how many prize cards an opponent has taken
Zenos yae Galvuss alternate wincon can pack quite a punch in multiplayer games, either by basically letting you kill the whole table by killing just one foe, or as a political tool but that same line of text is causing a bit of ruckus among players who are wondering, why print such a card on the main Standard set
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Below is a short video showing how he does it: Lunumbra prefers not to paint old or rare cards as he does not want to, as he says, deteriorate their value. Via Lunumbras Facebook and Instagram, have a look at his work: Terrific work
In a rule specific to drafting Double Masters, you also get to pick two cards whenever you open a pack, which means you can end up with a lot of powerful cards and a slightly stronger archetype as a result