What do Stun, Panic, Bleed and Burn do in Game of Thrones: Dragonfire?

Here are the exact in-game definitions of the most common offensive effects:

• Stun: the target can't use its Orders, habits or basic attacks on its turn. Pure control — it loses a turn.
• Panic: deals tactical damage (+20%) each round, for 2 rounds.
• Bleed: deals physical damage (+20%) each round, for 2 rounds.
• Burn: deals fire damage (+20%) each round, for 2 rounds.

The last three are damage over time, lined up with the three types of the triangle. But their real value is often secondary: they act as combo conditions. A panicking target makes Shadowsong's fire hit ×1.5; a burning target doubles Vhagar's taunt. The effect isn't just a DoT, it's a key that unlocks other bonuses.