First, we had GX in the Sun & Moon era with insanely powerful attacks, but after using the attack, you suffered from a massive drawback and could only use it once
In the early days of Magic , Wizards of the Coast had to account for all sorts of hypothetical contingencies in rules text - how to handle losing life, accounting for ante, and playing a subgame with a deck under 40 cards
It even fits Whites flavor of happy good time sunshine (You know when they arent committing genocide against Goblins or setting angry mobs on people
Thorn of the Black Rose: [Monarch Card] Except for the monarch bit, it's just another common creature to get that limited creature count up
In the Commander set, there are 48 rares and 8 mythic rares
Serious payoffs for hitting land drops including but not limited to: excellent mana sinks, landfall triggers, morph activations, etc