Its going to be great to have Rayblade Trooper in a deck that cares about those +1/+1 counters
Skullcrack and Command will stop lifegain if you use it recklessly, and the Burn deck is so efficient that it can often just count on topdecking damage spell after damage spell
The first impulse might be to throw three of these guys down on your bench with Hoopa-EX at the beginning of the game and then hit for 30 extra damage every turn, but that would clog up your bench, not to mention give your opponent several targets to strand in the Active spot with Lysandre
The -2/-2 on turn thee will be good enough most of the time (in the current metagame), but hitting the life gain requirement isn't difficult (it is automatic if you run Ancient Cornucopia)
Cookgroup Bots Cookgroups are online communities that provide access to various restock bots and other resources
Card Shows and Conventions Local card shows used to be the place to offload your Magic cards, but nowadays you just dont see as many of those big shows as you used to