Borderless Rooms are found in Duskmourn: House of Horror Play Boosters and Collector Boosters
Endurance, Fury, and Solitude are the best of the bunch, though Subtlety and Grief still see some play
Magic The Gathering: The Basics Gain a foundational understanding of Magic: The Gathering, including its objective and fundamental rules Identify and comprehend the distinct functions of MTG card types, such as lands, creatures, instants, and artifacts

The best ones to do that are artifacts, so any drafter can use them, but some colored ones look interesting as well: And to help with critical mass, there are some Changelings and clones that are commonly used anyway: Ideally, the effect I want to achieve is: - 1-2 decks per pod have minor tribal themes (say, RG Beatdown with Krenko, Mob Boss, Siege-Gang Commander and Goblin Warchief doing cute things) - In about 50% of the drafts, a dedicated tribal deck is drafted, running the generic tribe enablers (White weenie running mostly Soldiers with Adaptive Automaton, Harsh Mercy, Mutavaultand Obelisk of Urd) - Once in a blue moon, someone puts together Shriekmaw, Mulldrifter, Flickerwisp, some clones, changelings and the tribal cards and makes a crazy 4-color Elementals blink deck that's bad but loads of fun
Hello all and happiest of days to each of you
When buying cards, budget wisely : chase cards like Secret Rares are awesome but not always necessary to win