Arena of Glory: Land, Modern Horizons 3. This land enters tapped unless you control a Mountain. Tap: Add R. R, Tap, Exert this land: Add RR. On Mana Grove.
Arena of Glory is a Magic: The Gathering card, a rare red land from Modern Horizons 3 (MH3), a draft-focused set released in June 2024. It is collector number 215 in that set, with art by Jorge Jacinto. As a land, it has no mana cost. Its colour identity is red. It is legal in Modern, Legacy, Vintage, Commander, Duel Commander, Oathbreaker, Brawl, Historic, Timeless and Gladiator. It has been printed in 3 sets, from The List (2020) to Modern Horizons 3 (2024). The latest aggregated market price for this printing is $9.48 (normal finish, as of 2026-10-23).
Card text
This land enters tapped unless you control a Mountain.
{T}: Add {R}.
{R}, {T}, Exert this land: Add {R}{R}. If any of 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.)
Market price
Latest aggregated market price for the normal finish of this printing: $9.48 (as of 2026-10-23).
The figure covers this printing only; other printings carry their own price on their own page.
Format legality
Legality of Arena of Glory by format. Formats in which it is not legal are not listed.
Arena of Glory has been printed in 3 sets. The other printings are listed newest first, with the rarity and release year of each.
Printing
Rarity
Year
The List (PLST) #MH3-215
Rare
2026
Modern Horizons 3 (MH3) #351
Rare
2024
Modern Horizons 3 Promos (PMH3) #215s
Rare
2024
Official rulings
The 8 most recent official rulings for Arena of Glory, newest first.
If an exerted permanent is already untapped during your next untap step (most likely because an effect untapped it), exert's effect preventing it from untapping expires without having done anything.
If the mana generated with Arena of Glory's last ability is spent on two different creature spells, each of those spells (and resulting creatures) will gain haste until end of turn.
If mana generated with Arena of Glory's last ability is spent to cast a noncreature spell that creates tokens, those tokens won't gain haste.
The mana generated with Arena of Glory's last ability can be spent on anything, not just creature spells.
If you gain control of another player's permanent until end of turn and exert it, and then that player regains control of it, it will untap during that player's untap step.
If mana generated with Arena of Glory's last ability is spent to pay any part of a creature spell's cost, including an alternative or additional cost, that creature spell (and the resulting creature) will gain haste until end of turn.
If mana generated with Arena of Glory's last ability is spent on a noncreature spell that becomes a creature later in the turn, that creature won't have haste.
You must already control a Mountain as Arena of Glory enters the battlefield for it to enter untapped. If it enters the battlefield at the same time as a Mountain when you control no other Mountains, it will enter tapped.
Similar cards
Other land cards with a red colour identity, ranked by how often they appear in Commander decks.