The main idea of this Odd Dragon Warrior deck, which became possible in the most recent Hearthstone Expansion Rastakhans Rumble, is to stall out the game for as long as possible to the point where all non-combo decks run out of steam and lose out late game. This deck does well into a lot of aggro and midrange decks, but due to its lack of active win condition (which will be in Odd Quest Warrior which I am going to play next week) the deck struggles into combo decks. Armor, taunts, board wipe, and some extra removal with the dragon package allows for you to control the board into most matchups in the current meta, although there are definitely some that still beat this deck due to the lack of win condition. Being conservative with this deck and not wasting removal can be a decent play due to all the armor gain in this deck, but that being said, knowing the limits of this deck and how far you can push you board state before you are forced to use removal can be confusing and that understanding comes with time, but the great news about this deck is it takes A LOT to push this deck to the point where it is in danger with aggro or midrange.
Combo: Keep minions and dragons and play aggressively. Literally the only way you win is if you get some decent minions to stick (like a 7/4 dragon or a big taunt from a Stonehill Defender) and pressuring damage. Basically keep minions and omega assembly and pick the most aggressive mech you can.
Aggro and Midrange:
Keeping board wipe like Reckless Fury and Brawl are pretty decent options due to the fact that these decks want to build a wide board and if you can wipe it on 5 then they will never be able to get back to a point where they can pressure you effectively with all your armor and other removal. Keeping the Shield Slam, Stonehill Defender, and Omega Assembly are pretty good options as well.