To play with the summoner Avina of the Wolf, of course, you need the life region. In this case, one of the best strategies is to have strong cards in the front region, with high defensive stats, so that they can take the strongest hits and give the summoner's ability a boost. I will explain how to create the combos in more detail below.
The first step to create this strategy is to use the summoner Avina of the Wolf, with the particularity of having two options in battle, either increasing the speed of two allies or granting the heal ability to a single ally. For this strategy, it is best to use heal on the first card, because it will allow her health to be restored two points in each round, thus increasing her defensive power, which is what is needed for the auxiliary cards to attack while she resists.
That's why I use Grimbardun Fighter as the main card summoned in the first position, of the starting cards there is no better card to defend like this one, its shield ability reduces the attacks caused by melee or archers, in turn with the improvement of the summoner Avina of the Wolf giving it the heal ability a tank is created in that position.
Added to this to continue improving this strategy it is important to use Scavo Hireling, a small mole with the reapir ability who can repair Grimbardun Fighter's shield in each round every time it is affected. It is a card that does not generate damage but its ability makes up for it, it always enters any team because it only costs three mana points.
Behind these short ones you can use any card that causes good damage, I like to use cards with opportunity because they attack the rival monsters with lower life destroying the team faster.
To see in more detail this strategy that I am proposing, I leave the link here: https://splinterlands.com?p=battle&id=sl_93ae6e9e2a42f30e94eeff03fd6a3ca9&ref=splinterforce