Unnerve: really good in multiplayer
Technically, yes, but you can grant yourself one-time permission that applies to all spells you cast if you want
In fact the printing of Unholy Heat (and to an extent Solitude) has mostly pushed out cards like Tarmogoyf out of the format, as the removal in the format is now so efficient that creatures either need to be one-mana, so you trade at an even level (Dragons Rage Channeler and Ragavan, Nimble Pilferer), too large to be killed by Unholy Heat (Deaths Shadow and Murktide Regent) or generate immediate value upon being played (Solitude, Fury and Omnath, Locus of Creation)
Did someone target anything you have
1 Vizkopa Guildmage
Angraths Marauders I think the best play with Angrath's Marauders is to threaten an attack that looks nothing like lethal, slam this down in your first main phase, and end the game there and then