Iroas, God of Victory

Mana cost: {2}{R}{W}
Type: Legendary Enchantment Creature — God
Power / toughness: 7 / 4
Set: Secret Lair Drop #70 (mythic)

Indestructible
As long as your devotion to red and white is less than seven, Iroas isn't a creature.
Creatures you control have menace.
Prevent all damage that would be dealt to attacking creatures you control.

Iroas, God of Victory has 6 printings, first in Journey into Nyx (2014). EDHREC ranks it #1,452 among Commander cards. It appears most in Isshin, Two Heavens as One decks (12,310 on EDHREC). 2 public decks on TCG run it. It has 10 official rulings.

Legality

commander: legal
legacy: legal
vintage: legal
pauper: not legal
modern: legal
pioneer: legal
standard: not legal
brawl: legal

Public decks that run Iroas, God of Victory

Break the Chains, led by Caesar, Legion's Emperor
Open Hostility - Commander 2016, led by Saskia the Unyielding

Commanders that run Iroas, God of Victory most

Deck counts from EDHREC.

Isshin, Two Heavens as One: 12,310 decks
Esika, God of the Tree // The Prismatic Bridge: 4,201 decks
Caesar, Legion's Emperor: 4,147 decks
Lightning, Army of One: 4,086 decks
Tifa, Martial Artist: 3,521 decks
General Ferrous Rokiric: 3,266 decks
Saskia the Unyielding: 3,091 decks
Marisi, Breaker of the Coil: 2,321 decks

Often played with Iroas, God of Victory

Cards that show up in the same decks on EDHREC.

Rulings

2014-04-26: Iroas's last ability prevents all damage dealt to attacking creatures you control, not just combat damage.
2020-01-24: When a God enters the battlefield, your devotion to its color (including the mana symbols in the mana cost of the God itself) will determine if a creature entered the battlefield or not for abilities that trigger whenever a creature enters the battlefield.
2020-01-24: As a God enters the battlefield, your devotion to its color will determine whether any replacement effects that affect creatures entering the battlefield apply to that God. Because replacement effects are considered before the God is on the battlefield, the mana symbols in its mana cost won't be counted when determining this.
2020-01-24: The type-changing ability that can make a God not be a creature functions only on the battlefield. It's always a creature card in other zones, regardless of your devotion to its color. It's always a creature spell while it's on the stack.
2020-01-24: If a God stops being a creature, it loses the type creature and the creature type God. It continues to be a legendary enchantment.
2020-01-24: The abilities of Gods function as long as they're on the battlefield, regardless of whether they're creatures.
2020-01-24: Counters put on a God remain on it while it's not a creature, even if they have no effect.
2020-01-24: If a God is attacking or blocking and it stops being a creature, it will be removed from combat. It won't rejoin combat if it resumes being a creature later during that combat.
2020-01-24: Your devotion to two colors is the number of mana symbols among mana costs of permanents you control that are the first color, the second, or both. If an effect counts your devotion to two colors, a hybrid symbol that is both of those colors is counted just once.
2020-01-24: If an effect causes a God to lose all abilities, its ability that causes it to stop being a creature still applies if appropriate.