pikachu card sleeves Ultra Pro: Pokemon - 65-Pack Deck Protector: Energy - Dragon Type Vintage Pokemon Gotta Catch 'Em

I like that Worthy Cause helps you keep growing the Avatar while grabbing a new creature with Oath of Druids

Discard a card: This creature gains hexproof until end of turn

SR Super Rare Babycerasaurus X EARTH Level 2 [ DinosaurEffect ] ATK 500 DEF 500 If this card is destroyed by card effect and sent to the GY: Special Summon 1 Level 4 or lower Dinosaur monster from your Deck

The two ideas that initially spring to mind for me, with Porygon-Z, is to use it in conjunction with the upcoming Dialga EX and/or Tornadus- EX PLF

[...] Some of the details changed (or were 'retconned', in popular fan speak), but for the most part the core of these stories stayed the same"

It can also just be a land when you need that