To determine the total cost of a spell, start with the mana cost or alternative cost you're paying, add any cost increases, then apply any cost reductions (such as that of Swampsnare Trap)
7 Lord Windgrace Playing with a Planeswalker as your commander still feels a bit rebellious, but Lord Windgrace is one of those that allow it
For example, if two 3/3 creatures with mentor attack and both mentor triggers target the same 2/2 creature, the first to resolve puts a +1/+1 counter on it and the second does nothing
Rating: 3/5 Razoul - Palace Guard Razoul is a 2-drop that comes out onto the board as a 3 Strength and 3 Willpower character
Nissa, Worldsoul Speaker Nissa, Worldsoul Speaker is a fine energy payoffcasting spells for any resource other than mana is inherently broken, after allbut I like it best as an energy generator
Horrifying body gore, impossible-to-detect infiltration schemes, and a (mostly) irreversible transformation into one of the most feared entities in Magic