Zin, Soul of Zephyr

{3}{u}, {t}: Draw two cards, then discard a card.
Whenever you cast an instant or sorcery spell, untap all creatures you control and put a +1/+1 counter on Zin, Soul of Zephyr.
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"Like this impetuous young one Zin. In a way he reminds me of myself, before I reformed—powerful, ambitious, and dangerous."
—Sarkhan Vol