Desperate Auction

Each player may bid creatures they control to gain control of target creature. You start the bidding with a bid of 0. In turn order, each player may top the high bid. The bidding ends if the high bid stands. The high bidder sacrifices a number of creatures they control equal to the high bid and gains control of the creature. (This effect lasts indefinitely.)
"I couldn't do this without you on my side." -Noobplayzgames