You see three main options everywhere: Booster Box Elite Trainer Box (ETB) Booster Bundle At first, they all looked similar
A potentially better alternative could be Faithless Looting, which has a similar effect but allows you to choose which cards to discard
Even just a simple monster like Luster Dragon jumps to 2700 ATK when you banish another Level 4, but banishing Red-Eyes Black Dragon gets it to 3300 ATK, and Blue-Eyes White Dragon could boost it to a whopping 3500 ATK
Jin-Gitaxias, Progress Tyrant Jin-Gitaxias, Progress Tyrant is a 7-mana commander that at least does a decent job of protecting itself by countering spot removal spells pointed at it, or wraths
More specifically: Good Random A janky deck is, by definition, a deck with not only more variance in its outcomes, but wider swings on that spectrum