A standard playing card size guide will explain what the card size is, how it varies across various formats, including bridge size cards, tarot card dimensions, mini cards, jumbo cards, and MTG cards, and how margins, edge radius, and bleed affect the card size
Mentor of the Meek is an extremely popular Soldier, allowing you to draw cards whenever a creature with power two or less enters the battlefield for the low cost of one generic mana
Joining the humble draft booster are the set booster, collector's booster, and theme booster
So if you attend any gaming conventions, for example, and head to the Ravensburger stand to check out Lorcana, you should be able to get your hands on one of these cards
It's cheap, it can give +1/+1 counters when you gain life, and it can give lifelink to a creature
Also, this is great leading Spirits or tossing them in here and there in his colors (like Commander Classic Karmic Guide) since he pumps their power, making 4/2's on the battlefield