Arena of Glory is a rare Land card from Magic: The Gathering (Modern Horizons 3 Promos, PMH3).
Rare
Modern Horizons 3 Promos (PMH3)
Mana Value
0
Card Text
This land enters tapped unless you control a Mountain.
{T}: Add {R}.
{R}, {T}, Exert this land: Add {R}{R}. If that mana is spent on a creature spell, it gains haste until end of turn. (An exerted permanent won't untap during your next untap step.)
