Magic ccg

[Kaden]

For creatures, replace Copper Myr with Llanowar Elves. The Iron-barb Hellion is mediocre, at best. If you want a large red creature, you could grab a Hellkite Charger (4RR 5/5 flying, haste) or an Inferno Titan (4RR 6/6 firebreathing and direct damage) or something like that, though you're probably better off looking to green for your big hitters (Pelakka Worm, for example).

There are more efficient ways to do some of the stuff you want to do. For mana acceleration, like I said earlier, you're probably better off with Llanowar Elves than the Copper Myr; running only two colors, starting with one green shouldn't be a problem. Instead of Mana Geyser and Skyshroud Claim, look for Sylvan Ranger, Cultivate, and/or Rampant Growth. You could even go with Growth Spasm and Harrow, but those are a little more situational, I think.

If you think you have to mainboard artifact and enchanment destruction, take out Elf Replica and Smash and put in two more copies of Naturalize. Tangle Golem isn't bad, but you could also just grab something like Leatherback Baloth. Again, green is the place to look for the beat down creatures. Definitely get rid of the Welding Jar.

I'd probably suggest putting in more burn spells, also. Lightning Bolts and Burst Lightning or Staggershock. Burn down defenders and hit with the bigger creatures.

Now, obviously, I'm not sure if you were going for something specifically. What I suggested basically just turned your deck into something completely different. If you had a theme or goal in mind, then feel free to ignore anything I said. If you just kind of threw something together, then, well...

Also, my knowledge of cards is largely limited to what's standard right now, and you obviously aren't building anything with that in mind, so there might be alternatives to the cards I suggested. I just know that most of what I threw out is readily available and, for the most part, cheap.