pokemon vivid voltage cards - Ampharos V - 171/185 - and a code card for the Pokémon TCG Online Pokemon Cards - Sword &

I really want to make a deck with four of these, four copies of Oracle of Bones, and just enough splashy, absurd bombs to inject The Fear into my opponents

Only 110 cards were printed, so what could be more expensive than that

For example, vintage booster boxes (like those from 1999 Base Set) have 36 packs inside and 12 holos

[W][W][W][C] Freezing Timber: 120+ damage

Hollowhenge Overlord has the potential to exponentially grow your pack over several turns

Similarly, if you sacrifice an artifact or creature to activate a mana ability to pay a cost with waterbend, that artifact or creature won't be on the battlefield when you pay the spell's costs, so you won't be able to tap it for waterbend