status/CurseSelfCritStatus.cs
using System;
using System.Collections.Generic;
using System.Linq;
using Sandbox;

[Status( 9, 0, 0.8f, 0, true )]
public class CurseSelfCritStatus : Status
{
	public CurseSelfCritStatus()
	{
		Title = "Critical Wounds";
		IconPath = "textures/icons/curse_self_crit.png";
	}

	public override void Init( Player player )
	{
		base.Init( player );
	}

	public override void Refresh()
	{
		Description = GetDescription( Level );

		Player.Modify( this, PlayerStat.SelfCritChance, GetAmountForLevel( Level ), ModifierType.Add );
	}

	public override string GetDescription( int newLevel )
	{
		return string.Format( "Dmg you take has {0}% chance to crit for double", GetPercentForLevel( Level ) );
	}

	public override string GetUpgradeDescription( int newLevel )
	{
		return newLevel > 1 ? string.Format( "Dmg you take has {0}%→{1}% chance to crit for double", GetPercentForLevel( newLevel - 1 ), GetPercentForLevel( newLevel ) ) : GetDescription( newLevel );
	}

	public float GetAmountForLevel( int level )
	{
		return 0.07f * level;
	}

	public float GetPercentForLevel( int level )
	{
		return 7 * level;
	}
}