I agree with your core concept here I really do. I like what you're doing and your philosophy of helping new players I just feel like these situations are so few and far between for the rest of the playerbase that it does not amount to a compelling argument for the Spear to stay in as it's current iteration. Healing recieved, healing output, a debuff over all enemies currently engaged... There are a ton of ways that the slot that the Spear currently takes up could be filled by something more useful and worthwhile.

Also please don't misunderstand me, I'm not someone calling for the Spear to be changed right now. As it stands the Spear is maybe the only cement block tied to AST's feet and I have called for nerfs to Balance and/or raw healing power in the past for AST. I don't think they need another good card right now. I also don't think that they will stay this OP forever though and as someone who has had their opening AoE Balance overwritten by an AoE Spear I think I speak for the majority of the AST playerbase when I say that this card holds no value for most players of this class since most people are not in your specific set of circumstances.

This actually reminds me a bit of Cleric Stance - it's removal made me sad for both practical and impractical reasons. I was proud of my ability to stance dance and for the damage bump it gave me when I used it but at the same time I understood that for the majority of casual healers it was a huge gateway in terms of them trying to effectively DPS in their role. It worked for me, sure, but for the good of all healers it needed to be changed. The Spear is just appealing to an even smaller niche market.