Mammoth Growth

Instant - (common)

Target creature gets +4/+4 until end of turn.
Foretell  (During your turn, you may pay  and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)

Thus the longhall became a flathall.

Price

tcgplayer 0.05

cardmarket 0.07

cardkingdom 0.35

cardsphere 0.14

manapool 0.15