If building an MTG deck seems like a complex task to you, help is at hand
Similar lists do exist in Legacy, but those fall more on the side of Death and Taxes, which is a lot better for interacting with the opponents gameplan
A devoid card with blue mana symbols in its mana cost can still appear only in decks with a commander that includes blue in its color identity
Upvote for Sliver Hivelord or Crypt Sliver + Supreme Verdict, or for Ghostflame Sliver + All is Dust (this last one I'm still considering using, but both Ghostflame and All is Dust are kinda useless to me unless played together)
This monstrous card has some of the best protection in the game, having protection from quite literally everything
Whenever you put one or more counters on a Goblin, Orc, or Army you control, The Great Goblin deals 2 damage to target opponent