pokemon card bulbasaur AR 166/165 sv2a Pokemon Card 151 Japanese Grass / 70 / Basic Attack 1 Bulbasaur - 44/102 - Common

If youre in the Tron package, running all of the classic Urza lands, you can reliably cast this planeswalker as early as your third turn, letting you make use of its incredible cast trigger

Emeria, Shattered Skyclave 7 I think this is the second most cast of the five mythic MDFCs however I have only seen it go on to win once or twice

Shadowless, which looks like First Edition but without the stamp

For instance: if you had three Clues, enough mana, and all the relevant cards exiled under Lazav, you could cast Cackling Counterpart targeting Lazav, hold priority before it resolves, sacrifice a Clue to trigger Lazav to transform him into Marionette Master, hold priority again, sacrifice another Clue to trigger Lazav to transform into Octavia, Living Thesis, hold priority once more, cast Armor of Shadows, let everything resolve, then sacrifice a final Clue