I'm sure not many players have even heard of Taniwha or Shimmer, let alone have desire to cast such cards
For Strixhaven, the Silverquill theme booster is an excellent choice as the faction itself is white/black with several lifelink creatures
This set includes the Umbreon VMAX (Alt Art) and Rayquaza VMAX (Alt Art) cards, which are currently two of the top three most expensive Sword and Shield cards.
Sadly, this isnt a great payoff for a 9-mana investment that, to begin with, requires your opponents to have targetable creatures for you to tap down
Diantha will be able to heal a whopping 90 damage from any psychic Pokemon with at least two energy attached, though using her will expend those two psychic energy
Pack to Power was a project started by Johnathan Medina, the start of which was documented in his article on CoolStuffInc in 2010