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)
Fun fact: Iron-juguliss razor-sharp wings can slice through steel, making it a formidable opponent in battle
Ramping into or reanimating Toxrill early can end games before they even get started
Drawing from that experience, I applied to the Pokmon Card Game Illustration Grand Prix
When it comes to the more modern sets, the Pokmon Company had an ingenious idea