Flash
When Niambi, Esteemed Speaker enters, you may return another target creature you control to its owner’s hand. If you do, you gain life equal to that creature’s mana value. , , Discard a legendary card: Draw two cards.
If a creature on the battlefield has {X} in its mana cost, X is considered to be 0.
23-06-2020
wotc
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.
Random a card of Magic: The Gathering (MTG), but you can also roll the D20 dice, random a Planeswalker, have fun with the random rules and more.