i have a question about this. what fusion can you summon and what fusion can you not summon??

Scientist is, obviously, limited to level 6 or lower fusions so level 7 and above are NO's.

Things you CANNOT summon

XY-Dragon Cannon
YZ-Tank Dragon
XZ-Tank Cannon

Stuff you CAN summon

Anything else level 6 or lower since they don't have XYZ fusions text.

ok because some dumb ppl at the tournaments were saying you cant bring them out since you need to be fusion summon(like balter, ryu, and fiend skull) but i cant argue with all of them so i just went along. but now i wont. thanks