Looked back for some Freebirds posts (it's what I call this deck archetype), and decided this one is the closest to what I run. There's something even closer in the Half-Blood study thread, but it has no thread.
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7ai 7ai 7dp 7dp 7dp 7dp 7dp 7ds 7ds 7ds 7ds 7ds 7ds 7du 7du 7ee 7ee 7ee 7ee 7ee 7mt 7mt 7mt 7mt 7mt 7mt 7n9 7nq 7nq 7nq 7nq 7nq 8po
Back when the Pepoker (Rustlers, Dragons, Heals) became obsolete as an unupped EM rush because of the new Elders and their larger amount of CC, me and some other people like jmdt tried to make an ImmoPhoenix with Heals to substitute it. It didn't really work, even with pre-nerf Immo and Ash.
This, however, does. It's easy to get 2
in every match and 4 is no problem in semi-long ones. It boosts survival a TON, because as you know if you've played Freebirds, you usually only lose by a turn if you do. It also provides a lot of EM's for those matches where everything goes as it should and you take a little bit of damage.
I use it in Silver. I'm willing to bet it's also the second best (after SoI rush) or the best AI4 grinder. I used to mod my Freebirds quite a bit, but with this one the only change I ever sometimes do is +1 Seraph.
A possible mod is -1 Improved Heal, +1 upgraded Nightmare.