For example, Oko, Thief of Crowns can turn artifacts or creatures into 3/3 elk creatures
As an example, check out the cards below
If you're just making custom cards for fun, you're not hurting nobody
Card Set(s) -ROMANCE DAWN- [OP01] CARD VIEW OP01-050 | C | CHARACTER Penguin Attribute Strike Block icon 1 Effect [Blocker] (After your opponent declares an attack, you may rest this card to make it the new target of the attack.) [On Play] If you don't have [Shachi], play up to 1 [Shachi] from your hand
To make sure your cards are easily accessible, you may want to create sections in your binder, use separate boxes, or use different drawers for each category you have organized your evolutions into
Finally, it has the Welcome Return ability, which states that whenever this character quests, you may return a chosen character of yours with a cost of one to your hand (from your discard pile), and if you do, you may play a character with a cost of one ink for free