mtg card keywords 48 Pieces Abilities Counter Dice Dice 1/+1 Counters Bulk Creature Stats Buff Tokens Dice Set for Magic The Gathering, MTG, TCG, Games Accessories (Multicolor) : Toys & Games Keyword ability - MTG Wiki

Whether to include one card over the other comes down to specific environments, and larger Cubes could certainly facilitate both, but the point is that Callidus Assassin is a very real card for control decks that would like to spend their turns leaving up mana for counterspells and removal

Each player may respond to that triggered ability as normal, but it doesn't matter what happens to the damaged player's life total at that point

The decreases may have also been caused by price fatigue

The art has something of the movie Se7en about it

The mana curve of the deck is rather low , meaning you can cast a lot of spells without much mana investment