Defeating the Undefeatable: All of them are treated at one point or another as effectively undefeatable by their current holders (Kaiba repeatedly gloats that as long as he has Obelisk he can't lose, Marik through Strings boasts that his specifically-designed Deck makes Slifer unstoppable, and Dark Marik repeatedly shouts about how Ra cannot be beaten) against anything not another God Card, and in particular Ra is claimed to be invincible even against the other two gods

Unlocking Boosters and More In this section the requirements for unlocking each booster pack is stated STAGE 1 Starting Packs: Dark Magician, Mystical Elf, Red Eyes Black Dragon 10 Wins Inside The Stage: Judge Man Beat all Opponents 10 Times: Harpy Lady Defeat Yugi Moto 20 Times: Blue Eyes White Dragon Defeat Joey Wheeler 20 Times: Exodia STAGE 2 Starting Packs: Tiger Axe 10 Wins Inside The Stage: Gate Guardian Pieces Beat all Opponents 10 Times: Great Moth Defeat Mako Tsunami 20 Times: Gemini Elf Defeat Mai Valentine 20 Times: Launcher Spider STAGE 3 Starting Packs: Garoozis 10 Wins Inside The Stage: Relinquished Beat all Opponents 10 Times: Black Luster Soldier Defeat Marik Ishtar 20 Times: Blue Eyes Toon Dragon Defeat Umbris & lunis 20 Times: Battle Ox STAGE 4 Starting Pack: Blue Eyes Ultimate Dragon 10 Wins Inside The Stage: Millennium Puzzle Blue Beat all Opponents 10 Times: Millennium Puzzle Green Defeat Seto Kaiba 20 Times: Millennium Eye Defeat Yami Yugi 20 Times: Buster Blader STAGE 5 Defeat Simon 1 Time: Millennium Puzzle Gold Cheats These codes are for those that do not want to take the time and defeat each opponent a certain number of times to unlock a booster

If a game of Commander lasts ten turns, and you have no way to increase your card velocity, you'll only end up seeing 17 (opening hand of seven plus drawing one card each turn) of the cards in your 99 card deck
While precons are also a good way to get new players into the game, they can still be quite intimidating and demand some level of awareness and familiarity with the game
I like this in Enchantress to copy Enchantresses a lot