Whenever you cast a noncreature spell, put a +1/+1 counter on Vivi.

At the beginning of your end step, if you have four or more noncreature cards in your graveyard, put a skill counter on Vivi.

Skill: Mana Tap {R} —

You may cast target instant or sorcery card with mana value 3 or less from your graveyard. If that spell would be put into your graveyard, exile it instead.

How do you prove that you exist...?

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