Boon of Boseiju

Target creature gets +X/+X until end of turn, where X is the greatest mana value among permanents you control. Untap it.

Flavor Text: She closed her eyes and remembered the smell of the leaves of Jukai Forest. When she opened them, the buildings of Towashi had grown small.

Card Details:
Set: Kamigawa: Neon Dynasty
Collector Number: 176
Artist: Anastasia Ovchinnikova