Apart from echoing the above, Teclis is not a game breaker.... seriously. All that needs to be done is for an opponent to be able to have a viable strategy to remove him. For his points, yes he is great, he can dominate the magic phase with ease and can cause a world of hurt to you. However he is just as vulnerable as any other character on the board, more so if you consider his toughness. He is not the end all of WFB.
Things Teclis does not like;
Any type of Assassin suicide squad. Whether it be Skaven, DE, etc.
Snipers.
Warmachines and constant ranged fire on his unit until its gone.
Flying creatures or mosnters with killer characters hitting the flank or rear of his unit once they are engaged by an anvil at the front.
Depending on your opponent he has quite a few ways to stop Teclis as well, from high MR, magic items and even removing some of his spells via special race specific items too. Some armies will struggle, but he is no more no less than a very effective mage. If somebody wants to point sink that many points into him as a choice, then have to spend a heap protecting him as well, great, it gives the opponent more than enough chance to really do some serious damage or win via objectives.
I would rather see as the above posters state, you use him with a better lore. However if you wish to go beasts and wish to build an army around that... take it from another perspective. Take a level 2 or level 4 with beasts and run that in conjunction with another mage. Beasts is a great support lore and would give you some great combinations.
Things Teclis does not like;
Any type of Assassin suicide squad. Whether it be Skaven, DE, etc.
Snipers.
Warmachines and constant ranged fire on his unit until its gone.
Flying creatures or mosnters with killer characters hitting the flank or rear of his unit once they are engaged by an anvil at the front.
Depending on your opponent he has quite a few ways to stop Teclis as well, from high MR, magic items and even removing some of his spells via special race specific items too. Some armies will struggle, but he is no more no less than a very effective mage. If somebody wants to point sink that many points into him as a choice, then have to spend a heap protecting him as well, great, it gives the opponent more than enough chance to really do some serious damage or win via objectives.
I would rather see as the above posters state, you use him with a better lore. However if you wish to go beasts and wish to build an army around that... take it from another perspective. Take a level 2 or level 4 with beasts and run that in conjunction with another mage. Beasts is a great support lore and would give you some great combinations.