Arcane Teachings [The List] Phyrexian Treefolk her closest childhood friend—she had

her closest childhood friend—she had to suffer him calling her "your emperorness" for much of their shared youth

add one mana of any color

Set: The List Type: Legendary Creature — Human Spy Rarity: Rare Cost: {U}{B} As long as X is in X's owner's opponent's hand

When Reito Sentinel enters the battlefield

Arcane Teachings [The List] Phyrexian Treefolk her closest childhood friend—she hadSet: The List Type: Enchantment Aura Rarity: Common Cost: {2}{R} Enchant creature (Target a creature as you cast this. This card enters the battlefield attached to that creature.) Enchanted creature gets +2 +2 and has "{T}: This creature deals 1 damage to any target." Dwarves may teach at the speed of stone, but their results are solid.