While stacking multiple bounty counters on a card has no benefit, you can stack up multiple payoff cards to claim all their rewards simultaneously
Any permanent will do, which means there are plenty of avenues to take
To determine the total cost of a spell, start with the mana cost or alternative cost you're paying (such as a flashback cost), add any cost increases (such as kicker costs), then apply any cost reductions (such as that of The Water Crystal's first ability)
Top 25 Most Expensive MTG Lord Of The Rings Cards I want to preface the list by saying that the serialized 001/001 "one-of-one The One Ring" will be the most valuable card of the set and likely of all time
Delighted Halfling - The best mana dork since Birds of Paradise
But there's also parts of that Venn diagram where it's just one or the other We wanted a game where trading card gamers would find that kind of strategic depth, and the combos, and the synergies