Mana Cylix?

[Lord Of Zombies]

does mana cylix generate counters or does it actually bring mana from your deck?

[Mage Master]

It just adds a mana of any colour to your pool. It doesn't search your deck for a basic land and put it into play.

[a-slice-of-cake]

Remember, mana =/= land. Land is simply the most common producer of mana.

[Dunjohn]

Check out the FAQ in the Rules Q&A section, it does a good job on explaining exactly how stuff like the Cylix works. It gets asked about a lot.