Abzan Falconer and Tuskguard Captain are classics here, but there are also cards like Armorcraft Judge and Inspiring Call that are more general rewards
So, for example, lets imagine we can attack with our Arbiter because of its size and evasion but not with our Sun Guide because it would die to opposing blockers
Prices for the Charizard card have only increased over the years, making it the holy grail for collectors and a super valuable card for investors
Unlike mana, which you can't keep for very long if you don't spend it, energy counters stay with you turn after turn until you spend them or an effect causes you to lose them
It feels slightly out of place in a deck whose main creature theme is sea beasts, but its still a great way to make use of all of those extra land drops youre making
Oh, and you also get some card advantage with it too