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Stores that are already part of the Hobby Store Program and have held events previously should have been sent details

Not normally, but if Shellephant has first strike, double strike, or triple strike, and the creatures it's in combat with have none of them, you can deal damage as a 3/3 and then change it to a 1/4 before normal damage happens

Grixis (blue/black/red) Kefka plays into forced discard, and easily draws a ton of cards so that you keep your hand full while your opponents lose everything they have

Modern-day lands that give you access to multiple colours always have a downside of some sort, thats just not the case here