Merge 2 sprites from scriptable object

Hi! I would like to know how to merge 2 sprites from a scriptable object give it a name the same script. Im still new to Unity and im not sure how to proceed with this so here is my script in wich I want to make this happen:

using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

[CreateAssetMenu(fileName = “New Card”, menuName = “Card”)]

public class Card : ScriptableObject

public int level;

public string cardName;

public string type;
public string effect;
public string rarity;
public int id;

public Sprite template;
public Sprite artwork;

public bool isCreature;


My super basic idea is to do someting like
" mergedSprites = template.sprite+artwork.sprite;"

Both images are the same size (825 x 1125) and they are cut in a way you can add them both on top of each other without worrying about wich is on top of wich. Im only looking to make a third sprite out the first 2. Any help would be appreciated. Thank you for taking the time to read.

Have a great day!

for creating a new sprite you need to use sprite.create Unity - Scripting API: Sprite.Create

for creating the texture for the new sprite you need to combine both sprite textures (sprite.texture).

then you just need to wriite in the new texture the old ones.