Aggression is the name of the game.
Another reason is because your Commander’s abilities can cause spells to act in novel ways.
An excellent example is Zada, Hedron Grinder.
A simple 3/3 Goblin may seem unobtrusive, but Zada can make the most minor red spells into powerhouses.
All it’s crucial that you do is find the right effects.
Creatures
The more creatures you have on the battlefield, the more effective Zada will be.
Ornithopter is a free 0/2 artifact creature with flying.
It doesn’t matter that it has zero power, because you’ll be buffing it a lot.
Meanwhile, it has evasion and can block small fliers while you’re setting up.
Rograkh, Son of Rohgahh, offers similar value, but his one toughness may be problematic.
And don’t sleep on Empty The Warrens: Zada decks have the potential for huge storm effects.
Be wary of board wipes.
Card Draw
Red isn’t known for having good card draw options.
Renegade Tactics is the most basic of these cantrips.
But nothing requires you to choose your opponent’s creatures!
Even better than drawing cards is drawing while buffing.
Iron Myr is a must-have, while Palladium Myr and Plague Myr are also excellent.
If you lean in on producing goblin tokens, Brightstone Ritual can provide a fast source of red mana.
And Mana Geyser will give you a big boost after your opponents have tapped out.
One of the best mana sources, though, is Storm-Kiln Artist.
With Storm-Kiln Artist in play you’ll never need to worry about mana.
With your creatures in place you’ll still need the right spells to power them up.
Red contains a lot of general buffs.
Ancestor’s Aid and Sudden Breakthrough only give +2/+0 each, but create even more of those treasure tokens.
This will allow you to generate a lot of goblin tokens in a short time.
And include one or two spells that can use up all that extra mana in a pinch.
Fireball effects are great, and Volcanic Geyser is instant.
Or use Lunar Frenzy to go for the kill.
