I'm gonna bump this, with more reasonings.
First of all, imo damage is worth slightly more than healing, as the usual aim is to whittle the opponent's health down to 0, regardless of your own.
Vampire stiletto costs 1
for an 8hp difference between you and your opponent each turn. Can be lowered if opponent has a shield.
Druidic staff costs 2
for a 7hp difference between you and you opponent each turn. A guaranteed 5hp difference in healing each turn.
The guarantee is not worth a +1 cost and -1hp difference.
Vampire dagger costs 2
for a 12hp difference between you and your opponent each turn. Can be lowered if opponent has a shield.
Jade staff costs 2
for a 9 hp difference between you and your opponent. A guaranteed 5hp difference in healing each turn.
The guarantee is not worth a -3hp difference.
I suggest:
LOWER DRUIDIC'S COST(-1
)
Then:
Vampire stiletto costs 1
for an 8hp difference between you and your opponent each turn. Can be lowered if opponent has a shield.
Druidic staff costs 1
for a 7hp difference between you and you opponent each turn. A guaranteed 5hp difference in healing each turn.
AND RAISE JADE'S HP DIFFERENCE (3damage and 7healing)
Then:
Vampire dagger costs 2
for a 12hp difference between you and your opponent each turn. Can be lowered if opponent has a shield.
Jade staff costs 2
for a 10 hp difference between you and your opponent. A guaranteed 7hp difference in healing each turn.