Black lotus

[xDeGroatx]

Can u tap black lotus as soon as u cast it on the feild? Or does have summining sickness

[DrainCleaner]

Only creatures are affected by summoning sickness

[LinkCelestrial]

{Izzet Cluestone}, {Sol Ring}, {Darksteel Ingot}. You can tap all those sorts of things right away.

{Copper Myr}, {Elvish Mystic}. Those are creatures, so they have summoning sickness.

[Anoobass]

Just to clarify, an {izzet keyrune} could tap for mana the turn you played it.  HOWEVER, if you were to animate it first, it would then be a creature, and have summoning sickness and not be allowed to tap for mana.