Forum:XYZ material on the field

For the TCG the XYZ material monsters are classed as on the field however do they still count as monsters? e.g. if i used Blackwing - Shura the Blue Flame and Blackwing - Bora the Spear for Utopia could i then use icarus attack? OR if i had Ancient City - Rainbow Ruins when i used Crystal Beast Sapphire Pegasus and Crystal Beast Amber Mammoth could i use city's effect to tribute one to negate a spell or trap? --ME!!!!!!!!!! (talk • contribs) 20:27, August 27, 2011 (UTC)