Planeswalkers, legendary creatures, major story cards, and big effects often appear here
Kiki-Jiki, Mirror Breaker + Seeker of Skybreak / Deceiver Exarch A simple, yet effective combo that lets you create an infinite number of creatures to finish your opponent
It casts tons of free spells and generates an obscene anthem to pummel your opponents into the ground, and it does a great job exploiting power-crept legends
Pair it with cards that grant evasion like Whispersilk Cloak or bypass blockers with something like Key to the City
Its strength lies in consistently removing threats from the opponents field
Any deck that plays white and struggles with threat-density will eventually ask the question: What if I add Stoneforge Mystic? Occupying only six slots in the maindeck, the two-drop and his weapons add enormous consistency and speed to most decks, be it aggro or control