gt card sleeves 600 Pack Clear, Perfect Fit Inner Sleeves Ideal for Double-sleeving, Trading Card Sleeve Compatible with MTG, PKM, TCG and Gaming Cards (60 Microns) : Toys & Games these 25 clear sleeves are designed to keep your cards safe and secure for years to come Ryker | The Great Dalmuti

Dark Ritual and Cabal Ritual are fairly nice for a burst of extra mana for an explosive turn like a turn two K'rrik, Son of Yawgmoth

Dark Strike Fighter

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

Training Grounds wouldn't be wasted in the deck because we could play cards like Vitu-Ghazi Guildmage to help Populate often

To win, you can attack with your smaller creatures while building your mana to cast your expensive cards, and win via a massive Shivan Devastator, Tyrant of Kher Ridges, or Dragonwing Glider

When choosing art for your custom MTG cards, pay attention to its type and consider how it fits with the overall design aesthetics