Niambi, Esteemed Speaker

Text:

Flash
When Niambi, Esteemed Speaker enters the battlefield, you may return another target creature you control to its owner's hand. If you do, you gain life equal to that creature's converted mana cost.
, , Discard a legendary card: Draw two cards.

Rulings:

• 6/23/2020 If a creature on the battlefield has <img src="/Handlers/Image.ashx?size=small&amp;name=X&amp;type=symbol" alt="Variable Colorless" align="absbottom" /> in its mana cost, X is considered to be 0.
• 6/23/2020 If the target creature is an illegal target by the time Niambi’s triggered ability tries to resolve, the ability won’t resolve. You won’t return the card from the zone it moved to or gain any life.