The Alpha Boar makes its first appearance with the Animal Invasion event. It is encountered in a Level 28 encounter named after itself, "Alpha Boar", where it is accompanied by 6 other boars - 4 Boar Matriarchs and 2 Boars.
The combination of the Alpha Boar and the Matriarchs will decimate most lines without , especially with their Trample attack (unofficial name), which has the ability to strike an entire row!
The Boar has two attacks, both which share the same "ammo" reserve, despite being ∞. The first of which is a basic Bite/Shove/Tusk attack that hits one target.
The second attack, which we shall call Trample, has a 1-2 range and will attack the entire row. Despite being Contact, if the Boar can target an exposed unit on the 2nd row, the attack will hit EVERYONE on that row, even if units are hiding behind other units on the first row. Fortunately, there is a lengthy cooldown on this attack.
The Alpha Boar can be found in Boar encounters in the Boar Badlands, as well as certain "Wild Bunch" encounters. It shares its appearance with the Boar Matriarch.