They're an absolute blast to shuffle and can be effectively used for any situation constructed decks, Cube, Commander, you name it
This commander also rewards you for stocking your deck full of legendary Zombies, as it creates tokens of them should they be removed
The problem is that a 2/2 (even a 2/2 with flying) can be outclassed fairly quickly, so delaying Vexing Gull trades its early game relevance (pecking in for damage) for mid-game value (when you might be behind in the race or not be able to attack with Vexing Gull)
Each Planeswalker in this set has an on going ability/effect on top of their abilities
Whenever two or more creatures you control attack in a band, each creature in that band gets +1/+1 until end of turn for each creature in that band
Like Hogaak, I believe it was a design that ended up working in two colors, so it was given a hybrid cost