The tiny opportunity cost means you may not need a heavy defender theme to make Coral Colony viable, but it obviously helps and also provides another way to kill opponents using Axebane Guardian + High Alert untap loops
Does your deck need to jump ahead on mana in order to function properly and attempt to do what you want it to do
Sothera, the Supervoid Singularity Foil While not a serialized card, this version of Sothera, the Supervoid appears in a small number of Collector boosters
Loyal Apprentice
With this ability, if Lilo - Escape Artist is in the discard pile at the start of the player's turn, they can pull her back out and play her immediately to the table, exerted
But creatures in Alpha were dreadful, so this beat stick comes with a very big downside: during your upkeep, you need to sacrifice a creature, or the Lord of the Pit will deal seven damage to you