Constantly getting passed the same color usually indicates that the color is open and available
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)
Thrasios, Triton Hero A powerful mana sink that converts extra resources into long-term value, making him extremely reliable in slower or control-focused games
The Ozolith gives you a non-creature permanent on which to store your counters and is a good mover of counters as well
The reason he is good is that he does a lot of work in the control match disrupting and posing as a threat while he is still a great tempo play against an aggressive player
