If, for one of the targets, you can't choose a new legal target, then it remains unchanged (even if the current target is illegal)
For a deck that just wants to flood the board as fast as possible, playing cards like Wrenns Resolve and Reckless Impulse is already a good idea, and getting free Thopters for doing so is amazing
expires June 23, 2028 Decklists The Fellowship of the Ring (Green-White) Deck: Creatures (24) 1 Aragorn and Arwen, Wed (Mythic Rare) 1 Frodo, Determined Hero (Rare) 1 Gandalf, White Rider (Rare) 1 Galadriel, Gift-Giver (Rare) Instants (3) Sorceries (2) Artifacts (3) 1 Bilbo's Ring (Rare) Enchantments (2) Lands (26) The Might of Morder (Black-Red) Deck: Creatures (23) 1 Sauron, the Lidless Eye (Mythic Rare) 1 Gollum, Scheming Guide (Rare) 1 Witch-king, Bringer of Ruin (Rare) 1 The Balrog, Flame of Udn (Rare) Instants (3) Sorceries (6) Enchantments (1) 1 Fires of Mount Doom (Rare)
The question is: Which one is better
You never really end up with a deck, as much as a collection of removal spells, a dash of evasion creatures, a trick or two, and some ground-pounders