Use the save editor. You aren't hurting Rovio's revenue (they've moved on to Angry Birds Journey), and you are saving yourself from a predatory mobile grind.
Released in 2014 by Rovio Entertainment, Angry Birds Epic broke the mold of traditional slingshot gameplay. It introduced fans to a turn-based, role-playing game (RPG) set in a whimsical, medieval version of Bird Island. With its deep crafting systems, class-based combat (Knight, Mage, Druid, etc.), and notoriously difficult grind for materials and Snoutlings (the in-game currency), Angry Birds Epic remains a beloved title for mobile gamers. angry birds epic save editor
Do not use the save editor. You will be banned, and you will ruin the experience for legitimate players. Use the save editor