In a game, the split card will have the mana cost of both the cards combined , except for when it is on the stack , where it will only count for the mana cost of the half that is being cast
Source: Magic: The Gathering Magic: The Gathering Arena Released September 27, 2018 ESRB T for Teen // Blood and Gore, Mild Fantasy Violence Developer(s) Wizards of the Coast, Wizards Digital Games Studios Publisher(s) Wizards of the Coast Franchise Magic: The Gathering Platform(s) PC, Android, iOS Genre(s) Digital Card Game
If action abilities, auto abilities or Summons that increase power values have already been resolved and dispel is used after that resolution, the power increase will still remain in effect but any abilities or Summons used to increase power after that will not take effect [23-092R] Black Widow The Monster card is placed in the Break Zone at the point when effects are resolved
It can also take out some of the better Walls in the game
This was a question raised by Newton Hang during our co-stream on the weekend just passed
The most notable of these is the Plague Sliver, the first Sliver which introduced a drawback to Slivers