yugioh card pendant YGO 3D Metal Pendent/Key Chains Blue Eyes 17 mm at its widest Black Pendant - Starter Deck:

An Aeolipile is "a closed vessel that rotates due to steam jets, and is often called the first steam engine", according to Google

Elesas Sparkle SR Elesas Sparkle ~2,180 (~$15) Pull rate: ~1/box (est.) Elesas Sparkle SR is the most valuable non-Mew card in the set

Sure, it's a little 1/1, but it's got reach, can produce any color of mana, and with a slight investment, it can trade with another creature in combat

I like to aim for bomb threats that at the very minimum act as a lightning rod in addition to some enter-the-battlefield effects

This attacks damage isnt affected by Weakness, Resistance, or effects on your opponents Active Pokmon