Rulebreaker — If Daxiver, Izzet Electromancer is your Commander, you may include instant and sorcery cards of any color in your deck regardless of color identity. {T}: Add one mana of any color. Spend this mana only to cast instant and sorcery spells.
{2}{R}, {T}, Sacrifice a black creature, a red creature, and a green creature: Search your library for a card named Hellkite Overlord, put it onto the battlefield, then shuffle.
The penultimate step of the ritual involves bathing in a delicious glaze.
Other Goblins you control get +1/+1. {R}: Until end of turn, another target Goblin you control gains flying and "When this creature deals combat damage, sacrifice it."
"I've always enjoyed kicking stuff, so this was an ideal career opportunity."
Prowl {2}{B} When Earwig Squad enters, if its prowl cost was paid, search target opponent's library for three cards and exile them. Then that player shuffles.
When Embermage Goblin enters, you may search your library for a card named Embermage Goblin, reveal it, put it into your hand, then shuffle. {T}: Embermage Goblin deals 1 damage to any target.
{2}: Enslaved Scout gains mountainwalk until end of turn.
"Her soldiers' hatred for the Goblins is tempered only by their need for what the Goblins alone hold: knowledge of their mountain home." —King Darien of Kjeldor
Trample Exuberant Fuseling gets +1/+0 for each oil counter on it. When Exuberant Fuseling enters and whenever another creature or artifact you control is put into a graveyard from the battlefield, put an oil counter on Exuberant Fuseling.
You may choose not to untap Flamestick Courier during your untap step. {2}{R}, {T}: Target Goblin creature gets +2/+2 and has haste for as long as Flamestick Courier remains tapped.
As an additional cost to cast this spell, sacrifice a Goblin. Target creature gets -5/-5 until end of turn. Fodder Launch deals 5 damage to that creature's controller.
Leave it to a boggart to come up with a projectile as disgusting as it is deadly.