Second is the limited space
Anyone attempting to kill another one of your creatures with a spell or damage needs to deal with Pippin first, and that ward cost makes it just a little bit more difficult
For a reasonable 3 mana cost, players can activate their Traveling Chocobo and use it to play any lands or other Chocobo/bird cards in their deck, provided they're in the top spot, potentially gaining a significant upper hand in either standard or commander game types
Another good vehicle for your casual decks
(Note that there also is a mechanic called graft used by the Simic in the original Ravnica block, but I'm not talking about that.) Here's an example of a famous old card from Urza's Saga that grafts: The point of grafting is that you take an existing card and expand what it can do by grafting on additional words and/or abilities
Haldan & Pako suffer from the unfortunate reality of being kinda unwieldy to play over webcam, but theyre on my shortlist to build once we can venture into the world again