I personally find the best approach is to take my lumps in that matchup, and instead try to be the best I can be against Izzet Murktide, Azorius Control, Urzas Saga decks and small creature decks
Air Elemental is almost as good, but taps to attack, and can be Red Elemental Blasted, so is slightly worse than Serra
Also, global supply chain (Japan export) matters for international collectors
Its power is definitely interesting, as being able to refill a hand after playing trainer cards keeps options open
Cards known as the flip cards from the Kamigawa set were so hard to understand in a first glance, that they would never be used again
however, the scale of its increase and especially the intra-year fluctuations are harder to understand