Some benefits of having specific Pokmon cards include: Being able to complete your collection
Haldan lets you cast noncreature spells from exile that have fetch counters on them, and you can spend any kind of mana to cast them
Icefall Regent however commands at least 3 mana to kill, often four and sometimes the full five
In addition, it shuffles your graveyard and library for free when milled by effects such as Oath of Druids
Eventually you can fling those snails at opponents while drawing cards, which is a nice value engine
6: You get an emblem with "At the beginning of combat on your turn, create a 1/1 white Soldier creature token, then put a +1/+1 counter on each creature you control." Legendary Planeswalker - Basri Guide of Souls Whenever another creature you control enters, you gain 1 life and get (an energy counter)