If you have ways to boost Gishath, Sun's Avatar attack even further, it makes its effect that much scarier.
Heck, even in Competitive EDH, you're aiming for a win percentage in the 30s, and probably settling for 25% anyhow
This way, if the card does slip out of the sleeve, it won't also slip out the top of the protector too
Appa, Steadfast Guardian gives you some wrath insurance, blink synergy, and outs to an easy one-two infinite combo with Aang, Airbending Master
alternatively, if your life total is 40 when it resolves, it will cause you to lose 25 life
The big difference here is you dont control any permanents to produce mana or sacrifice at the start of a game, whereas the rules let you start with a full grip of seven cards ready to be spent immediately plus another free one each turn