Standard MTG cards are 2.5 x 3.5 inches (63 x 88 mm) the same size Snapshot prints, so your custom cards match a real deck and sleeve normally
In a pinch, you can even bounce your own permanent to save it or trigger landfall
The Brothers' War Limited Review - Blue Archtypes and Signpost uncommons Blue/White Soldiers (Yotian Tactician) Blue/Black Draw 2 (Evangel of Synthesis) Blue/Red Non-Creatures Matter (Third Path Iconoclast) Blue/Green Ramp (Battery Bearer) The Brothers' War - Top 3 Blue Commons 1) Wing Commando 2) Weakstones Subjugation 3) Koilos Roc The Brothers' War - Top 3 Blue Uncommons 1) Zephyr Sentinel 2) Thopter Mechanic 3) Defabricate Next in our The Brothers' War limited review it's time to check out Blue
Additionally, Impact Tremors can be used to burn opponents down as more and more Kobolds come out and Battle Hymn can be used to keep the mana flowing
Being able to go off the rails and do a bunch of weird stuff is refreshing in a way, sort of like Marvel's "What If..." series
The only limitation I can see is that consumers have to choose whether to display the playable cards or the art cards, but not both