Here is the list of budge creatures with green card draw abilities attached to them: Elvish Visionary When Elvish Visionary enters the battlefield, draw a card Garruks Packleader Whenever another creature with power 3 or greater enters the battlefield under your control, you may draw a card Llanowar Visionary When Llanowar Visionary enters the battlefield, draw a card Tap: Add 1 green Soul of the Harvest Trample Whenever another nontoken creature enters the battlefield under your control, you may draw a card Wall of Blossoms Defender When Wall of Blossoms enters the battlefield, draw a card Bonus Green Card Draw: A Garruk Planeswalker
From the reviews, it sounds like the Mayday Game and Sleeve King oversized sleeves are made for a game called Tiny Epic Kingdom and are a snug fit for oversized MTG cards
Though this is one of the tamer ones, the free indestructible to protect your commander and everything else is absolutely broken in a format with as many board wipes as Commander
Those are: Prison Term, Biting Tether, Corrupt, Flame Javelin, Glamer Spinners, Mistmeadow Witch, and Trip Noose