Essentially, if you have a full party with all four of these on the board, you can pay one white, one blue, and one black mana to give the Warrior lifelink, deathtouch, and make him unblockable (deathtouch and unblockable at the same time has no real use, but thats still OP to think about)
Witness is mostly used to secure some redundancy on thinly stretched decks with roughly one answer each for a variety of things or as part of a creature focused combo deck
It's basically cheating (or, more precisely: a color pie break) that lets red decks get rid of problematic cards like enchantments and guarantees that its target gets out of sight and out of mind, but runs the risk of replacing it with something even worse
So, how many MTG cards are there
MTG Lord of the Rings Commander There are four Lord of the Rings Commander decks, each with 20 brand new cards, as well as a whole load of reprints
Serum Visions Straight in with another core blue scry 2 effect
