relics/RelicMantlepieceClock.cs
using Sandbox;
using System.Reflection.PortableExecutable;
using System.Runtime.Versioning;
using System.Threading.Tasks;

public class RelicMantlepieceClock : Relic
{
	public override void LevelUp()
	{
		base.LevelUp();

		Manager.Instance.Stats[StatType.NumExtraBountyTurns] += (Level == 1 ? 2f : 1f);
	}
}