cards/CardCoffee.cs
using Sandbox;
using System.Threading.Tasks;

public class CardCoffee : Card
{
	public override bool IsFoodOrBeverage => true;

	public override bool ShouldHandleEvent( EventType eventType )
	{
		return eventType == EventType.Match && Manager.Instance.ChosenCards[1] == this;
	}

	public override async Task HandleEventAsync( EventType eventType )
	{
		Manager.Instance.PushEventMessage( this, eventType );

		await Task.DelayRealtime( 50 );

		Manager.Instance.PlayCardSfxBetween( "coffee", Manager.Instance.ChosenCards[0], Manager.Instance.ChosenCards[1], volume: 1.4f, pitch: Game.Random.Float( 0.95f, 1.05f ) );

		await Task.DelayRealtime( 150 );

		int healAmount = 2 + (int)Manager.Instance.Stats[StatType.FoodAdditionalHeal];

		Manager.Instance.SpawnHealHPFloater( healAmount, WorldPosition );

		await Manager.Instance.GainHP( healAmount );

		Manager.Instance.Stats[StatType.TimerTotalTimeOverride] = 3f;
		Manager.Instance.TimeSinceTimerChanged = 0f;

		Manager.Instance.AddStatus( "StatusCoffee" );

		await Task.DelayRealtime( 900 );

		Manager.Instance.PopEventMessage();
	}
}

public class StatusCoffee : StatusEffect
{
	int _turnCount = 0;

	public override bool ShouldHandleEvent( EventType eventType )
	{
		return eventType == EventType.TurnStart || eventType == EventType.TimerRanOut || eventType == EventType.FinishLevel;
	}

	public override async Task HandleEventAsync( EventType eventType )
	{
		if( eventType == EventType.TurnStart)
		{
			_turnCount++;

			await Task.DelayRealtime( 0 );

			if ( _turnCount == 2 )
				Finish();
		}
		else if ( eventType == EventType.TimerRanOut || eventType == EventType.FinishLevel ) 
		{
			Finish();
		}
	}

	void Finish()
	{
		Manager.Instance.Stats[StatType.TimerTotalTimeOverride] = 0f;
		Manager.Instance.RemoveStatus( this );
	}
}