The new Volts coach has signed three new players and reeled one back into the province.
It is a major coup for Otago, which has lost several leading players in the last few seasons.
Batsmen Anaru Kitchen (Auckland) and Brad Wilson (Northern Districts) have transferred to Otago, little-known Auckland seamer Warren Barnes will also make the move south, and a familiar face - Neil Broom - will return after a year with Canterbury.
Broom's departure was keenly felt last season. His record for the province compares favourably with some of Otago's best.
In 77 first-class games for the Volts, Broom has scored 4617 runs at an average of 41.59, including 12 centuries.
News of Kitchen's transfer was broken in the Otago Daily Times last week. He signed before King learned Broom wanted to return.
The pair play a similar style of cricket and will add considerable depth to Otago's middle order in the longer format of the game.
They can also bat anywhere in the top order in limited-overs cricket, so the Volts will have plenty of options.
Wilson is a ready-made replacement for Aaron Redmond at the top of the order and a proven campaigner with captaincy experience.
''We needed to bolster our batting stocks, there was no doubt about that,'' King said.
''We did that by recruiting Brad and Anaru. They are looking to reinvigorate their career. They still have aspirations to play for the Black Caps and are looking for a new challenge.
''And Neil Broom, well, we never envisaged this happening. That only happened last weekend, so it was very late in the piece.
''He approached us. For family reasons, he wanted to move back to Dunedin. We weren't actively looking for another batsman.''
The 23-year-old Barnes is yet to play cricket at the top level. He is a right-arm pace bowler.
King would not confirm whether Otago had approached fellow Auckland pace bowler Lachlan Ferguson. However, he said Barnes' name came up after talking to other players.
''He spent a day in Dunedin about a month or so ago. I showed him around and introduced him to people. He liked what he saw and when I offered him the opportunity to come down here, he happily accepted.''
The first round of provincial contracts will be offered to players next week.
With so many players electing to join the Volts, the squeeze will go on for the 15 available contracts, particularly in the middle order, where Otago has new depth.
