Seshat Khnum, Prodigy Healer

Convoke (Your creatures can help cast this spell.
Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.)
{3}: Untap Seshat Khnum, Prodigy Healer.
Whenever Seshat Khnum, Prodigy Healer
becomes tapped, you gain 2 life.
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"There is nothing I can't cure!"