A zombie dwarf legend, which should tell you enough, Balthors two abilities are to strengthen minions, or bring back all red or black creatures in everyones graveyards to play
Its drawback may look like its very punishing and can allow the opponent to surprise you via a mid-combat spell, but I never really saw that scenario play out since its damage prevention ability is a a conditional static ability so as long as its on when damage is dealt, it wont be prevented. (Thank you, @fenaris!) It usually plays out somewhat like a colorless Ashenmoor Gouger / Chimeric Idol where you typically dont bother trying to block with it (why am I blocking with my aggro guys anyway?) and, if need be, you cast a spell pre-combat to activate it (typically I used a large coin, like a quarter, to denote whether it was on or off)
The majority of Sen Triplet wins I eventually find are cobbled together through an absurd collection of cards from multiple opponents and held together by Scotch Tape
Whenever an opponent discards a land card, create a 1/1 black Bat creature token with flying
This doesnt change when the card can be cast
