public String removeMana(String manaPool){
		for(int i = (this.manaCost.length() - 1); i >= 0; i--){
			Character c = this.manaCost.charAt(i);
			
			if(c >= '0' && c <= '9'){
				for(int j = 0; j < Character.getNumericValue(c); j++)
					manaPool = manaPool.substring(1);
			} else{
					manaPool = manaPool.replaceFirst(c.toString(), "");
			}
		}
		
		return manaPool;
	}