The query
The related guidelines (from the Magic Complete Guidelines) are as follows:
105.2. An object will be a number of of the 5 colours, or it may be no colour in any respect. An object is the colour or colours of the mana symbols in its mana price, whatever the colour of its body. An object’s colour or colours can also be outlined by a colour indicator or a characteristic-defining means. See rule 202.2. [emph added]
105.2c A colorless object has no colour.
This defines the colour of a recreation object (a everlasting, spell, and so on). Barbarian Ring has no mana prices, and due to this fact has no colour symbols in its mana price. It additionally has no different indicator of colour (per rule 202.2e, a card with no mana price might have a colour indictor subsequent to its sort, which is a manner of indicating {that a} card has a colour identification—this isn’t significantly related right here). Therefore Barbarian Ring is colorless, and has no colour.
113.7. The supply of a capability is the thing that generated it. The supply of an activated means on the stack is the thing whose means was activated. The supply of a triggered means (aside from a delayed triggered means) on the stack, or one which has triggered and is ready to be placed on the stack, is the thing whose means triggered. To find out the supply of a delayed triggered means, see guidelines 603.7d–f. [emph added]
When Barbarian Ring’s second means is triggered, Barbarian ring is the supply of the 2 injury.
and
702.16b A everlasting or participant with safety can’t be focused by spells with the acknowledged high quality and can’t be focused by skills from a supply with the acknowledged high quality. [emph added]
Iridescent Angel has safety from all colours. It due to this fact can’t be the goal of skills from any supply which has a colour. Nevertheless, as famous above, the supply of harm from Barbarian Ring’s means is Barbarian Ring itself, which is colorless. Because the supply of the injury is colorless, Iridescent Angel has no safety from it, therefore it may be focused.
Brief model: Sure, Iridescent Angel will be focused by Barbarian Ring’s second means.
