If, for one of the targets, the player can't choose a new legal target, then it remains unchanged (even if the current target is illegal)
Designer Notes: Power Vivi up with noncreature spells, then produce a ton of mana and end the game
Here is just one of Jaces many, many big victories in Magics most powerful format: Creatures (3) Planeswalkers (2) Lands (22) Spells (33) 1 Sensei's Divining Top 1 Brainstorm 3 Mana Drain 4 Force of Will 3 Swords to Plowshares 1 Sol Ring 1 Time Walk 1 Ancestral Recall 1 Moat 4 Standstill 1 Crucible of Worlds 1 Black Lotus 1 Mox Pearl 1 Mox Sapphire 1 Engineered Explosives 1 Mindbreak Trap 3 Mental Misstep 1 Flusterstorm 1 Supreme Verdict 1 Treasure Cruise 1 Dig Through Time Trust me, I know these Modern kids are all high on Teferi, Hero of Dominaria in these Modern times, and hes no slouch
Those reactive cards need to have proactive elements, so that theres a real decision you can make instead of feeling like youre being forced to wait (which would be very un-red)
Whether it is just coincidence or not, Spanish cards from the Final Fantasy Starter Kit products has been leaked
Between this and Crush of Tentacles, the Sphinxs Tutelage deck has a better shot against Gideon, Ally of Zendikar