Under pressure
Playing with PDials 34 in platinum I stumbled upon an air deck with a splash of water. On turn 3, I had to play my first Sundial, which to my surprise was immediately countered by a Shard of Patience (and also Wings). I could not allow the opponent to destroy his shard, needed a fortunate draw, had to play Sundials and then 4 Shards of Sacrifice in a row, no opponent weapon, taking 40 damage from each SoSac, finding a new Shard of Divinity just in time, always fearing a Purify. While the pressure from the opponent became simply ridiculous, even a 500 HP deck would be trembling after 12 turns of this Shard of Patience. Imagine he has a Sky Blitz in hand, he'd be close to dealing out 1000 points of damage in one turn.