Sleeper Agent Format

[Hanmac]

New Arena Singleton Format with Sleeper Agent Emblem:

At the beginning of your upkeep, choose a creature card in your hand at random. It perpetually becomes a Phyrexian in addition to its other types. Whenever a Phyrexian you control deals combat damage to a player, that player gets two poison counters.

https://mtg.fandom.com/wiki/Sleeper_Agent_(format)