Time Walk What it does: A two-mana blue sorcery that grants you an extra turn
Nobody is buying Talas Warrior to put in a deck, so selling it is extremely difficult compared to a card of high demand with a relatively equal price, like Mystic Remora
The idea that it created a constant stream of creature tokens as long as it stayed on the battlefield proved to be an answer that was both flavorful and played well
First Strike Cartouche of Solidarity, Hyena Umbra, Ethereal Armor, and Shadow Lance are all one-mana enchantments that make a creature larger and/or give you other bonuses in addition to granting the enchanted creature first strike
Each box is sealed, fully randomized, and released with transparent odds so you can buy with confidence
If one of your opponents has cast three or more spells in a single turn, you can pay zero mana for Mindbreak Trap