Cards such as Final Battle and Little War can make a nice combo with Suguri's Hyper, as she will be able to make the most out of her doubled attack dice, and have a very high chance of KOing the opponent. However the high star cost of these cards in combination with her hyper makes the combo quite risky.
Using Accelerator at the start of the turn, then using Accel Hyper during the battle will make the player roll four dice when they attack, almost guaranteeing the opponent's death.
Speed based cards such as Windy Enchantment and Dash! can be very effective in helping Suguri catch up to an opponent in advance of her Hyper, or to help her escape an attacking opponent.
Rainbow-Colored Circle pairs very nicely with Suguri's evasion stats as, while the card will lower her already low defense, it provides her with a total evasion stat of +4.
I'm on Fire! can be used when playing aggressively to temporarily act as a bully character, giving Suguri a total ATK stat of +2. However, it does lower her defense, and is best used when there is little fear of retaliation.