Virtually every quality card you need to make this work, such as Eternal Witness, Fact or Fiction, Solemn Simulacrum, Avatar of Woe, and many more
It pairs nicely with token generators and with death payoffs like Mirkwood Bats, Pitiless Plunderer, and Zulaport Cutthroat, and its forestwalk ability has synergies with Toski, The Odd Acorn Gang, and other creatures that care about dealing combat damage to a player
Gaining lifelink and a +1/+1 counter on a 5/5 for just 2 mana can completely swing the game and turn what looks like a risky delve investment into a devastating, stabilizing play
Kefka plays a very controlling game plan, stopping your opponents before they can do anything
While no coin flip card should be the only thing you rely on, a 1-mana card that can win you the game isnt as big of a risk as some of the others on this list
Standard is rarely the place to play dedicated hate for those strategies, but control takes full advantage of spells and permanents that have it attached as a bonus