Adapt allows you to use it only once per creature, but if there are cards that use those +1/+1 counters as a resource, you can Adapt a creature multiple times
"Either folks playing Leyline of Resonance decks concede with their initial hand because they're dissatisfied with the draw and are unable to mulligan down to a winning solution, or they win within the first few turns of play," the article explains
The second thing it highlights is the toolbox approach to singleton
Value for money - How useful (and valuable) each card will be for future deck-building
In general, when looking at power level, I considered the overall game plan, the synergy of the 99 with that game plan, things like interaction, ramp, mana base and card draw, the commander, and the power of the remaining stand-alone cards
Quite the Character Plus, Tom Bombadil is such a weird and wonderful character from the original The Lord of the Rings trilogy of novels, and was so weird that Tom didnt make it into Peter Jacksons wildly popular The Lord of the Rings movies