LOL. Who was comparing it to Terminus? It's so much more than that. It punishes people for Playing Magic while rewarding people for playing control decks that lock people out of playing Magic.
Example 1: Balance-Stax
Let's say I have a Trinisphere, Mox Diamond,
Chimeric Idol,
Zuran Orb and one or more lands out. Opponent has some stuff out and has dealt me some damage. I cast Balance, the last card in my hand, sacrificing my lands to ZOrb. Opponent sacrifices all creatures, loses all lands and discards his hand. I gain some life, still have a mana source and attack for 3. Not only is that a ridiculous blowout, but opponent probably cannot cast spells before Idol kills him. Game over.
Example 2: R/W MUD
I've got a single Plateau and Grim Monolith + Key in play (sacrificed City of Traitors earlier). Opponent just killed my Metalworker, discarded my Wurmcoil Engine and played a bunch of dudes, so I've fallen behind. I cast Balance for 1W. Opponent loses all creatures and goes down to 1 land, possibly has to discard cards. We're both back to starting from scratch. With 2 mana, I just reset all his development and disruption gave myself a chance to get back in the game... a rather huge one, since I have 6 mana to his 1!
Example 3: CounterTop-HelmRiPper vs RUG
I've got CB and Top out, but had to use a FoW to defend the lock and am now behind on cards in hand. Meanwhile, opponent snuck through a Delver and Mongoose and is beating my face in. I just got Wastelanded and am down a land. I cast Balance for 1W. Opponent tries to Spell Snare/Spell Pierce so I just spin the top. Balance resolves. Opponent sacrifices both creatures, 1 land and discards 1 or more cards. Balance punished the tempo deck for getting ahead in the game and doing its job. Even without the CB/Top lock out after, that's still a beating for a threat-lite deck that relies on 1-for-1 efficient spells.
Example 4:
I have a Jace and cast Balance. Yeah, life is rough.
Example 5: LandTax
Tax-Rack online with Mox Diamond in play. Opponent plays duders to develop board position and deal me damage while I have durdled playing around with some silly card engine and trying to keep my land count below opponent"s. I cast Balance. Even if I have to discard a couple cards, board is reset and opponent loses land. Game is reset for a bit, but I'm +1 mana up on opponent thanks to Mox Diamond and I have card quality control via Scroll Rack, so I'm probably topdecking better. And he basically can't play a land for the rest of the game, despite being behind on mana, because if he does I draw a million cards.
Example 6: random game
Opponent is ahead by 8 life and 3 creatures. We have the same number of cards in hand and lands in play. He's just beating me at magic. I cast Balance for 1W. He loses 3 creatures and discards a card. Sorry bro.
Example 7: vs Reanimator
Opponent just stuck turn 2 Griselbrand, go. You play a second land and cast Balance. Opponent pays 14 life to draw 14 cards. Force of Will. You Force back. He Forces again. You return a Tundra to Daze. Balance resolves. Opponent loses Griselbees, discards 10ish cards, sacrifices a land and is now 14 life down. G2SB?