That's because Rick is a staple card in human Commander decks, and that's a pretty popular MTG creature type
Goblin Warchief Goblin Warchief is like the other goblins haste enablers before it
The illustrations depict him wielding a few different weapons, calling back to the weapon leveling system that FINAL FANTASY II utilizes
Ancestral Vision taught me a valuable lesson: having your spells resolve without costing you mana means you get to use all your mana to defend yourself, defend your spells, and clear space on the battlefield for your more important cards
Its the perfect counter to that Solphim, Mayhem Dominus player who wont stop laughing at you, and for blowing out token players who pile on all sorts of buffs
The mana base is a tightrope you must carefully walk when designing this deck, as Kird Ape has its own requirements, as do the handful of spells you might play that require double blue in the casting cost