Trostani Discordant

Mana cost: {3}{G}{W}
Type: Legendary Creature — Dryad
Power / toughness: 1 / 4
Set: Guilds of Ravnica Promos #208s (mythic)

Other creatures you control get +1/+1.
When Trostani enters, create two 1/1 white Soldier creature tokens with lifelink.
At the beginning of your end step, each player gains control of all creatures they own.

Trostani Discordant has 4 printings, first in Guilds of Ravnica (2018). EDHREC ranks it #9,739 among Commander cards. It appears most in Emmara, Soul of the Accord decks (3,213 on EDHREC). 1 public deck on TCG runs it. It has 3 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 Trostani Discordant

Token Triumph - Starter Commander Decks, led by Emmara, Soul of the Accord

Commanders that run Trostani Discordant most

Deck counts from EDHREC.

Often played with Trostani Discordant

Cards that show up in the same decks on EDHREC.

Rulings

2018-10-05: If a creature has an ability that triggers at the beginning of each end step and Trostani's ability causes you to gain control of it, the ability of that creature is still controlled by the creature's former controller. If the creature has an ability that triggers at the beginning of your end step, that ability doesn't trigger when you gain control of it.
2018-10-05: The owner of a token is the player who created it.
2018-10-05: Because damage remains marked on a creature until it's removed as the turn ends, nonlethal damage dealt to other creatures you control may become lethal if Trostani leaves the battlefield during that turn.