They leave enough space for the printing of numbers, symbols, and artwork
So if our opponent gets a Kor Firewalker on the battlefield, we can hope they block with it and then use Skullcrack to allow our creature to deal damage and kill it since the Skullcrack prevents damage prevention
Creature - Merfolk Shaman Color tag templates(None) Merfolk Skydiver Flying When this creature enters, put a +1/+1 counter on target creature you control
The big error that both include is Stitch Carefree Surfer, but only the non-enchanted version
You get the ETB trigger twice for four mana
Ramp Claim Jumper Vigilance When this creature enters, if an opponent controls more lands than you, you may search your library for a Plains card and put it onto the battlefield tapped