if you control any 2 monster (except "Subterror Guru") and not using "Pot of Extravagance" yet, summon your tuner such as "Ash Blossom & Joyous Spring" or "Ghost Ogre & Snow Rabbit" and use this combo :
any monster card + "Ash blossom & Joyous spring"/"Ghost Ogre & Snow Rabbit" = "Crystron Needlefiber" + "Effect Veiler"
"Effect Veiler" -> "Linkuriboh"
"Linkuriboh" + any monster = other link 2 monster
"Crystron Needlefiber" + other link 2 monster = "Mekk-Knight Crusadia Avramax/Astram"
what I talking about it doesn't matter...
it was your extra draw...
enjoy it...