these have been around since Legends, debuting with Infinite Authority
The fact that Conqueror can also swing for five in the air makes it much more competitive in current Magic, too, even if it is more vulnerable to removal
Aragorn, the Uniter Aragorn, the Uniter rewards you for casting multicolored spells, often leading to very oppressive turns
Aggro decks are the default in my environment, and even the control decks have creatures that they'll attack you with (As lucas has proved repeatedly!) A wall, at it's base is (And there's a lot of mental shortcutting here) Immolating Glare, but you can switch it's target later (by blocking a larger creature)
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Additionally, you can just ignore the deck-building rule and include creature cards with companion in your main deck