So... As long as it's a jutsu originating at us and then being, for lack of a better term, "thrown" outwards, rather than freeform, say, tai or shurikenjutsu, it's good?
Nine portals!? O_O Oh boy...
Looking forward, Mystogan began to concentrate on his Mark of the Demon; his connection to the Juubi's chakra. Drawing forth the Juubi's power, Mystogan focused upon the surge of energy he had felt when opening portals before, drawing upon his memory as the task became easier, to open a fourth portal so far in front of him (the other three have faded out of existence, just saying fourth because it's his fourth portal over all). With the portal opened, Mystogan glanced next to it, concentrating through his Mark of the Demon into the power of the Juubi to tear open another hole in space to create yet another connection to the Juubi's near-infinite chakra supply. With the power of the Juubi, a second portal, identical to Mystogan's first four, opened up to the right of the first still-standing portal. Grinning now that that it was easy, Mystogan looked to the left of his first portal, concentrating on the Juubi's power, by extension his power, to open a third portal, tearing the space before him open as if it were a piece of paper. Holding up gloved hands, Mystogan proceeded to point to a spot next to his line of portals, to the right of the line with his right hand and to the left with the left hand, and pulled back his hand like the Second Mizukage's Water Gun technique (like a kid playing guns; I just used a Naruto reference), tearing open the space between there and the Juubi with the power of his chakra in the position he was pointing to, pretending to shoot these portals into existence until six additional portals were opened, creating a line of nine portals centered directly in front of Mystogan with four on either side of the centered portal. He then looked up at Akuma, his over-head headband half-covering his eyes and casting the rest of his eyes in shadow, as his mask hid the rest of his face, presenting an ominous appearance.
Bit more tiring now that the excitement of opening portals is over... What next, Akuma-sama?