To determine the total cost of a spell, start with the mana cost or alternative cost you're paying (such as a flashback cost), add any cost increases (such as kicker costs), then apply any cost reductions (such as that of Cid's first ability)
Why its a contender: It provides unparalleled mana acceleration in Magic's most popular format, Commander
Spore Frog + Kami of False Hope At a glance, Spore Frog and Kami of False Hope look like bad Fogs because you play them at sorcery speed, but they open the door to a host of synergies, specifically with cards like Meren of Clan Nel Toth and Abiding Grace that return them to play each turn so you can soft lock your opponents out of combat
However, if you were down to a single digit life total and your opponent was near 17, it would make sense that they not ante an additional card for a mere three life
Emrakul, the Aeons Torn Emrakul, the Aeons Torn is one of the most powerful creatures ever: the best Eldrazi and among the best annihilator cards
Only the Soul Cauldron will return the value of your Collector Booster pack