Given present poison mechanics go for giant, single bursts instead of lots of small hits, I wasn't worried about my card. It's a rare anyways. Also, I remember playing in Scars block, I have no idea what you actually mean by "poison meta" because it didn't really...happen last time.
Keria, Possessor of Wills UURR
Legendary Enchantment - Aura (MR)
You control enchanted creature while it is your turn.
Enchanted creature has haste, can't attack you or a planeswalker you control, and can't be sacrificed.
Keria, Possessor of Wills can be your commander. Combat damage dealt by enchanted creature counts as combat damage dealt by Keria. (This is in addition to counting as combat damage dealt by that creature.)