I know that being especially in Izzet, an aggressive color combination with low to the curve threats, the card opened up the archetype to become extremely good especially since the printings of absurd Modern Horizons 2 creatures like Ragavan, DRC and Murktide Regent
The number four spot, however, is deserved as the next three cards arguably take it up another notch
Our last artifact is Weatherlight Compleated
Her graveyard recursion allows you to recover Goblins that die in combat or get removed, keeping pressure on the board over time
With Sen Triplets, you can play the control game, counter your opponents spells, focus on a combo/lock of your own, and win with their cards instead of yours
When the set was spoiled, the value of every mythic was worth at least the price of a pack, even taking into account the MSRP increase, and even now as prices drop, 16 of the 20 mythics are worth more than $16, and even the "bad" mythics from the set are still worth $5.91 to $9.99