the rarest pokemon card charizard V 017/172 Brilliant Stars - Ultra Rare RarityDouble Rare Hit Points360 HP Formnull The Most Valuable Mega Charizard

The trigger event doesn't have to specifically refer to legendary permanents or to artifacts, nor does it have to specifically refer to when something "leaves the battlefield." For example, an ability that triggers "whenever a creature dies" would trigger twice if a legendary creature or an artifact creature dies while Gandalf the White is on the battlefield, as would an ability that triggers "whenever a permanent is put into a graveyard from the battlefield." Look at each legendary permanent and each artifact as it exists on the battlefield, taking into account continuous effects, to determine whether any triggered abilities will trigger multiple times

On both 1st Edition and Shadowless cards, this reads: 1995, 96, 98, 99 Nintendo, Creatures, GAMEFREAK

That's way better if you already have legendary creatures on the battlefield, so try to play some legends alongside this Mardu dragon

Black Lotus, Mishra's Workshop and Tolarian Academy are all auto includes if you can get them in the archetype but they are also all a little bit overkill

Spells that can alter combat in your favor like Deceiver Exarch and Cryptic Command are especially valuable to let Marvo survive to attack again

Have you played with it yet