A Canasta Combination is a MELD of seven or more cards of the same rank. It is a type of MELD used in the card game Canasta, which is a variant of Rummy. A Canasta Combination is made up of at least four natural cards and three wild cards. The wild cards can be used to substitute for any other card in the MELD. A Canasta Combination is worth more points than a regular MELD, making it an important part of the game.