I dont know where this fits into the metaphor other than the terrifying thought that the birds were part of a mass extinction event, so lets move on
Its rule text references, by name, another Magic card from the same set, presumably as an attempt to create synergies between two otherwise unrelated cards
If hes attacking, untap him and there is an additional combat phase after this phase
Legendary Creature - Merfolk Shaman Color tag templates(None) Viseling At the beginning of each opponent's upkeep, this creature deals X damage to that player, where X is the number of cards in their hand minus 4
Its your tax for attacking with it, and its your opponents tax for not having an answer to it
The way Historic comes into play is when a card refers specifically to an effect on "Historic", for example