As I have played a game with Barthalamas that used speed and I have found that speed is the most important part as most battles became quick so I need more speed to attack first and then you could get rid of some opponent cards early and got an advantage so the best way to get a good card is by the market.
Since I am in experimental period so I have found that best way to try is by rental from the market and this is the most way that I spent my DEC as I have 300 so rental of Avina of the wolf would not be difficult.
Avina of the Wolf which have some good abilities and options that make it best choice for me as you have speed by 2 that I am looking forward and also I have a heal option which restore 1/3 max health and each round so you can use speed or health and this is whatever you want with this card.
I have found a good deal to rent this card for only 1 DEC and this is brilliant for me as you can use this card for about 11 days and this is only by about 11 DEC so I will have a good period to try this card before moving to other ARCHON.
This is the battle where I used some cards with Barthalamas to get advantage of speed but 1 speed was not enough as I have used a melee and magic cards with at least 2 speed for each card but it did not work with double melee attack from opponent and 6 cards vs 5 only.