Merlin was perhaps more witty than magical.
His speech was both witty and informative.
Then cam there a lady that was a wytty lady, and she seyde playnly unto the Kyng that he sholde never be hole but yf that Sir Trystrames wente into the same contrey than the venym came fro, and in that contrey sholde he be holpyn, other ellys never.