They are very strong and great in mono-color brews or ones with their abilities like life gain and mill and such
For example, Quantum RiddlerQuantum Riddler is a five-mana creature, but it can also be a two-mana one if you need to dig one card deeper or you meet the condition to refill your hand
I'm generally OK with running fewer boardwipes than most players, and I prefer to try to win games by killing everyone at once so nobody has to sit out to wait for the game to end
Tivit, Seller of Secrets Tivit, Seller of Secrets offers way too much value on its trigger, which happens on ETB and attacks
Silverfur Partisan Silverfur Partisan works as either pseudo-protection for your other wolves or as a combo enabler for decks that can exploit its heroic-like ability
Like most Magic: The Gathering cards, the value of Summon: Choco/Mog depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Final Fantasy)