are altered mtg cards legal Alter Reality Is It Legal to Play

You can combo it with March Of Wretched Sorrow so if you have to discard for hand size you can exile black cards to discount it to gain more life and deal damage to a creature or planeswalker

Excalibur II This one-drop colorless life-gain caring Equipment with a cost of three will put a counter here for each life you gain and then the dork you equip gains a size boost equal to that charge count

Note that this may not mean that those targets are illegal as the spell resolves

It also allowed a lot of room for flavor text

2018-12-07 When Lilianas third ability resolves, you put each permanent the player controls into one of the two piles