Lands, powerful spells, popular commanders, and Reserved List rares can be especially important
This attack does 30 more damage for each Energy in your opponents Active Pokmons Retreat Cost (Costs 1 Grass Energy and 1 Colorless Energy).Mega Blaziken ex SRFire Super RareHP: 210 Weakness: Water Retreat Cost: 1 Colorless Attack: Mega Burning 120 damage
Some collectors try to get their hands on every card imaginable, akin to filling up the Pokdex in Pokmon GO or one of the other mainline titles
You can catch a glimpse of them in images below
Don't get me wrong, I see the appeal of being able to draw from your tokens in addition to your creatures, but that once a turn restriction is going to be a millstone around your neck more often than I think people give it credit for
Another one that can help your mana issues but that requires a little extra footwork