If we look closely here, we can find the root cause: both Triggered Abilities make you select targets immediately when the mana ability is activated because they go on the stack immediately
Lets do a little Prototype lightning round of the better examples to kick things off: Autonomous Assembler Likely better in multiples, which doesnt really do much for us here in Commanderland outside of goofball Assembly-Worker decks
You also won't gain any life if the result is somehow negative
Legendary Artifact Creature Robot Dog
Almost no cards cards are capable of doing so for such a low mana cost, and, in the worst-case scenario, can let seasoned players know the optimum time to shuffle their library with another card's effect
To go all out, Jace, The Mind Sculptor from Worldwake is hard to beat