mtg all liliana cards of the Veil Separate all permanents target player controls into two piles FOIL Liliana, the Last Hope

these are to life loss what damage doublers like Solphim, Mayhem Dominus are to burn

Here is a rules breakdown, with Xenograft as an example

Later on your turn once you've done some life loss to your foes (which is mega-easy, and note that the Theater has that as a built-in trigger), then you'll be set and you can play any of the cards you exiled, even ones previously

Lets have a look at a sample decklist that was played in a Magic Online Challenge by player wiky: Planeswalkers (5) Narset, Parter of Veils Teferi, Time Raveler x2 Jace, the Mind Sculptor x2 Creatures (4) Snapcaster Mage x2 Monastery Mentor x2 Instants (15) Brainstorm x4 Swords to Plowshares x4 Force of Negation x3 Force of Will x4 Sorceries (14) Ponder x4 Preordain x2 Prismatic Ending x4 Expressive Iteration x3 Terminus Enchantments (2) Dress Down x2 Lands (20) Flooded Strand x4 Island x4 Mountain Plains x2 Prismatic Vista x4 Scalding Tarn x2 Tundra Volcanic Island x2 Sideboard (15) Hydroblast Pyroblast x2 Red Elemental Blast Surgical Extraction x2 Containment Priest x2 Ethersworn Canonist x2 Back to Basics x2 Izzet Staticaster x2 Wear // Tear Thanks to the printing of Prismatic Ending in Modern Horizons 2 , this deck has the ability to deal with virtually any troublesome permanent it comes across