Aang's Iceberg Aang, Swift Savior Ademi of the Silkchutes Agent Venom Airtight Alibi Ambrosia Whiteheart Ambush Gigapede Ambush Wolf Anafenza, Unyielding Lineage Annie Flash, the Veteran Appa, Steadfast Guardian Appendage Amalgam Aquitect's Defenses Armaggon, Future Shark Asinine Antics Aven Interrupter Avengers Assemble
While it's in play, if a Creature you control with power one or less dies, you may return it to the battlefield at the beginning of the next end step if Shirei is still on the battlefield
While Uro, Titan of Nature's Wrath undoubtedly would work in the deck, there are a couple of questions, with the two biggest being whether Uro, Titan of Nature's Wrath is too slow for what the deck is trying to do (oddly, four mana is a lot for the deck, which mostly tries to generate value for between zero and two mana) and what should be cut to make room for Uro
Gold Rush I think there is a Treasures Commander deck where Gold Rush is the nuts
If you manage to max out at the highest level, every additional 1,000 XP will net you an uncommon ICR with a 1:20 upgrade rate
They often contain powerful new cards and valuable reprints, making them an excellent investment