Example rules

Legendary Rings:

return {
	-- The Savage Hollows, DPS only
	BuffAliases {
		{
			"item:124634", -- Thorasus, the Stone Heart of Draenor
			"item:124635", -- Nithramus, the All-Seer
			"item:124636", -- Maalus, the Blood Drinker
		},
		{
			187616, -- Nithramus
			187619, -- Thorasus
			187620, -- Maalus
		}
	},
	-- Tanks only
	BuffAliases {
		"item:124637", -- Sanctus, Sigil of the Unbroken
		187617, -- Sanctus
	},
	-- Heal only
	BuffAliases {
		"item:124638", -- Etheralus, the Eternal Reward
		187618, -- Etheralus
	},
}

Augment Runes:

return {
	SelfBuffAliases {
		{
			"item:118630", -- Hyper Augment Rune
			"item:128475", -- Empowered Augment Rune (Horde)
			"item:128482", -- Empowered Augment Rune (Alliance)
		},
		175456, -- Hyper Augmentation
	},

	SelfBuffAliases {
		{
			"item:118631", -- Stout Augment Rune
			"item:128475", -- Empowered Augment Rune (Horde)
			"item:128482", -- Empowered Augment Rune (Alliance)
		},
		175439, -- Stout Augmentation
	},

	SelfBuffAliases {
		{
			"item:118632", -- Focus Augment Rune
			"item:128475", -- Empowered Augment Rune (Horde)
			"item:128482", -- Empowered Augment Rune (Alliance)
		},
		175457, -- Focus Augmentation
	},
}

Trinket flash: Pol's Blinded Eye

return Configure {
    "Pol's Blinded Eye",
    L["Flashes when Pol's Blinded Eye is off cooldown."],
    "item:113834",
    "player",
    "UNIT_AURA",
    function(_, model)
        if not GetPlayerBuff("player", 176876) then
            model.highlight = "flash"
        end
    end,
}

Show flash on "Charge" when Rage is above 5

This rule works. It's useless but it works.

return ShowPower {
    100, -- Charge
    "RAGE",
    5,
    "flash",
}

Show flash on "Templar's Verdict" at 3 more holy powers

return ShowPower {
    85256, -- Templar's Verdict
    "HOLY_POWER",
    3,
    "flash",
}