One of Moderns problems for the longest time was that there werent any powerful and cheap ways to disrupt opposing mana bases
As for Griffor, it is a Quick-Effect, so it is used last in the sequence, but it is a case-by-case situation as it might be used first, for example, by activating it during the Draw Phase
Litten The Fire-type starter from the Alola region
7 Lurking evil rares (2.5%) and 2 lurking evil mythic rares (0.3%) There are some cards that show up in two treatments
On the other hand, dropping this card out with a small arsenal at your disposal can ramp your mana acceleration in a hurry
Mythic Dragon A mythic rare dragon soaring over a volcanic battlefield, massive wings streaked with molten lava, glowing magma cracks across armored scales, intense orange-red palette, epic scale and motion, smoke and embers filling the sky, cinematic action lighting, ultra-detailed fantasy concept art in a vertical MTG-style card composition