Protect artifact is only useful against 2-3 FG that I found I could not beat anyway because they start too fast and this deck, unupgraded, is too slow.
Protect Artefact really helps protect your Eternity.
And eternity is really helpful. It protect you from decking out, keep growth and mutated creatures away, and protect your creatures vs impairing effects, so I'll keep it.
-Upgrade the key 7.
-Upgrade 2 Nova to Supernova and replace 2 Quantum Pillars with these. The impact of an early game Supernova is huge.
-Upgrade all of your cards that are key to generating the lock down which have their casting cost reduced by the upgrade: Dimensional Shield, Bone Wall, Eternity, Quintessence, Empathic Bond
-Upgrade your offense: Firefly Queen, Boneyard (optional: The casting cost goes UP but now you get 2/2 skeletons)
-Upgrade your Pillars
-Upgrade the cheap casting cost cards: Steal, Protect Artifact, Sundials
- I'm not sure about the "key 7" : you can play unupp'ed Oty quickly, and so begin to eat ennemy creatures quickly. So perhaps it's not a good idea to up them ?
- Upgrading the "lock cards" (bonewall excepted) results in 1 less quantum, upgrading pillars in 3 more.
- I don't think FQ is a priority. The fireflies are here only to feed Oty and Fallen Druid, and I don't really need fire quanta.