The following characters negate Hirudegarn's skill which reduces damage taken and deal more damage to Hirudegarn. Only SSR or above characters are listed here.
You'll get 2x Master Roshi (Santa Claus) from each multi summon. This character is used to increase Super ATK lvl 100%.
The following cards can be LR by Dokkan Awaken but the summon rate for them are not increased.
Time Attack Missions
PHY SSR Characters
Goku [Daily Training]
Sinister Plan Buu (Super) [Freaky Strategy]
[Beautiful Grasp] Goku Black (Super Saiyan Rosé)
To Greater Heights Super Saiyan God SS Vegeta
Inklings of Ultimate Power Super Saiyan 3 Goku (GT) (Golden Giant Ape)