If Gadrak is your commander then I'd recommend running a bunch of Threaten effects to steal opposing creatures and then sacrifice them to something like Ashnod's Altar
For instance, if you want Fire and Fighting types, I suggest Charizard
Date/Time: June
5 Rapunzel, Gifted With Healing (Challenge Promo, 4) $191.57 Long Hair, Valuable Cards Rapunzel, Gifted With Healing has stood strong as one of the best Amber Ink cards for its supportive prowess and, like all the challenge promo cards, this helps it be a super valuable card for both collectors and players
Surge Trainer Rare 102/132: Misty Trainer Rare 103/132: No Removal Gym Trainer Stadium Rare 104/132: The Rockets Training Gym Trainer Stadium Rare 105/132: Blaines Last Resort Trainer Uncommon 106/132: Brocks Training Method Trainer Uncommon 107/132: Celadon City Gym Trainer Stadium Uncommon 108/132: Cerulean City Gym Trainer Stadium Uncommon 109/132: Erikas Maids Trainer Uncommon 110/132: Erikas Perfume Trainer Uncommon 111/132: Good Manners Trainer Uncommon 112/132: Lt
It can take away all backrow, Monsters, or a Graveyard from the opponent, all with minimal costs