Rulings..

Some of the newer cards have rulings that people don't know about..

Machina Fotress:

can be negated by solemn and Thunder King Rai-oh

can discard itslef as part of it's cost, but if you do it under macros you wont get it back

when special summoned it doesn not start a chain link..

Drillw Warrior:

Discarding the card is
not a cost.

Starlight Road:

You can activate Starlight Road even if you cannot Special Summon due to the effect of Vanity’s Fiend

You Cannot Chain Starlight Road to Stratos 2nd effect because it is not a certain 2 or more card hit..

Just for you information..