A true tank does not DPS his way to victory. He is victorious due to the nature of his armor, tactics, and perseverance.
Mastodon Halberd - can turtle stab from behind shield or be swung.
Heavy Crossbow - Ranged weapon that needs one hand, keeping your shield at the ready.
Havel's set and Greatshield are some of the best tanking equipment there is.
Chloranthy Ring +1
Royal Soldier's Ring +1
Ring of Resistance
Third Dragon Ring
Note: All rings and Equipment can be obtained during the first playthrough.
No spell casting here.
Keep that shield up!
Also of note: total equipment load is below 70% so rolling is still an option.
Annoy enemies with nigh impenetrable defenses.