Bloodied Fury. While Bloodied, the boar has Advantage on attack rolls.
Actions
Gore. Melee Attack Roll: +3, reach 5 ft. Hit: 4 (1d6 + 1) Piercing damage. If the target is a Medium or smaller creature and the boar moved 20+ feet straight toward it immediately before the hit, the target takes an extra 3 (1d6) Piercing damage and has the Prone condition.
RollQuest ships the D&D 2024 SRD as a content pack, on a 5e character sheet that does the maths - roll from the sheet and let the numbers work themselves out. Free to start.