Kiora is very much an all rounder, a pretty threatening win condition, a source of value or a source of protection and stall
Takenuma, Abandoned Mire All of the channel lands from Neon Dynasty are playable, but Takenuma, Abandoned Mire is especially useful at fueling other strategies and grinding in long games
You could make Vedalken Squirrel-Whacker a 3/5 and change the die roll result to 2, make it a 2/3 and change the die roll result to 5, or leave everything how it was
Im still no expert, but I have come a long way since then
Oona, Queen of the Fae: Oona is a strong "millstone" creature that has the nice side-benefit of creating a swarm of 1/1 fliers with which to defend yourself or to kill off an opponent while you are milling another one out