The official dimensions of a Pokmon card are 63 mm 88 mm
In the same way that you can't cast a spell if you can't get the proper mana, mana is also a limiting factor when it comes to deck building
Before you go If youre a newer (or returning) player to the game, make sure to check out my guide on How to Build an MTG Deck
Elrond, Master of Healing I built and played a bunch of Lord of the Rings commanders and only one of them is still together
Use Auras to keep your Pearl-Ear, Imperial Advisor and other value creatures protected so that your engine sticks around, cast a lot of enchantment creatures to widen the field for cheap, and then drop haymakers, like True Conviction, Legion Loyalty, Cathars Crusade, and Boon of the Spirit Realm, to go for the kill