Cards that actually let you search for specific cards are few and far between in the game right now, which means your are going to want/need multiple copies of the same card if you want to be likely to actually find them during gameplay
White hungers for cheap, efficient, and repeatable card draw effects, and Glimmer Lens is not only the best equipment this year, but one of the best white cards we got for Commander all year too
You can obtain the Togepi (1-Diamond rarity) card by opening Space-Time Smackdown: Dialga and Space-Time Smackdown: Palkia from Space-Time Smackdown set
(And that these cards are usually the rare ones) Though it's not just the actual Pokmon cards you need to consider, but the Trainer cards too as they will be the backbone of your deck - ensuring you can get the cards you need, while also providing extra abilities like healing damage
For the Ancestors For the Ancestors is a nice way to support a typal strategy in green, allowing you to draw many cards regardless of your battlefield
The regular holographic cards could be found in approximately one in every three packs