Day of Black Sun I dont usually like when a set tries to introduce some cute board wipe
Provided you can survive a board wipe, I can definitely see this winning a game in a single swing and will massively reward the aggressive strategies that Lorcana seems to be incentivising for amber players in its third set, Into the Inklands
That still remains to be seen
There's no ambiguity about whether your card is "Near Mint" or "Lightly Played" a third party already made that call and sealed it in plastic
Lightning Helix "Basically the awesomest card ever." Life gain gets no respect, because when you invest mana and cards in life gain it has the nasty habit of not making a difference, especially when you're trying to play a burn-heavy game, which either involves trying to burn out an opponent or all opposing creatures
Secondly, there is a nice suite of green spells which scale with your creatures power