2015 rare pokemon cards X & Y BREAKthrough Ultra Mewtwo EX #158 The item may be similar but not exactly the same as the image (e.g 2015 Pokemon Xy Breakthrough 164

two copies of an illustration rare-style promo card featuring Shiny Mimikyu, with one showcasing the Pokmon Center logo

Youre drawing 15 cards a turn

Perhaps Erase is a good card against this particular mono-red deck, but that would only follow from logic along the lines of: "This matchup is very favorable for me in the absence of Outpost Siege, so it's worthwhile to sideboard a narrow answer card because it prevents one of main ways I can lose." Such specific and thoughtful analysis of the matchup is great, and it might lead you to play with one or more copies of Erase in your sideboard

As a multiplayer mode, it is advised that you tweak your deck to emphasize cards that are capable of affecting everyone, rather than targeting a specific player.

As an extra upside, Maelstrom Wanderer grants all your creatures haste, so every creature you hit off of the eight-mana Maelstrom Wanderer can attack the turn it resolves.

One thing to note is that Interplanar Beacon does say that you have to add mana of two different colors