Resto druids are versatile healers, healing widespread raid damage by keeping heal over time spells on the raid. They have great utility, and the only healer with battle ress. During high movement phases the druid hots will prove specially effective to keep the tanks alive.

Rotation for Restoration Druid Wotlk

Healing Priorities

Tank healing > keep lifebloom up on the tanks, rejuvenation, regrowth as needed and use nourish for higher incoming damage if the target as all HOTs there is no point of topping to 100%

Blanketing > Keep rejuvenation on all targets, keep lifebloom on the tanks as well if needed

Raid healing > Keep rejuvenation on the targets who take the most constant damage, cast regrowth if someone loses too much HP

Tips

Use the cooldowns as needed, [Swiftmend], [Nature’s Swiftness] with healing touch can save someone if cast at the right time.

Tranquility is a powerful AOE healing spell, however, the cooldown is high, so it needs to be used when the most AOE damage happens and there is no way out.