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
Every Magic set comes with pricy cards that command solid prices because of their rarity and/or their impact in various formats
The cards I cover can be impactful in any of Standard, Pioneer, Historic, Modern or Legacy
Dawn Charm With three different useful effects, none of which are horribly overcosted, Dawn Charm rarely sits dead in your hand
Maybe Boros Reanimator with Plargg, Dean of Chaos could use it well since it can get snagged from Plargg's trigger or just throwing it in a Giant deck as a good value creature
It contains no rotation system, where legal cards do not swap out for upcoming cards like in Standard format