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Now a lot of white lifegain decks can use this card, but I would suggest including it in an Elas il-Kor, Sadistic Pilgrim deck

SE Secret Rare Dragunity Knight - Vajrayana X WIND Level 6 [ DragonSynchroEffect ] ATK 1900 DEF 1200 1 Dragon Tuner + 1+ non-Tuner Winged Beast monsters When this card is Synchro Summoned: You can target 1 Level 3 or lower Dragon "Dragunity" monster in your GY

Other nice investments are Cori Mountain Monastery, Haunted Ridge, and Treasure Vault

Single Strike Urshifu V85/163 Single Strike Urshifu V#85 Single Strike Urshifu VMAX86/163 Single Strike Urshifu VMAX#86 Rapid Strike Urshifu V87/163 Rapid Strike Urshifu V#87 Rapid Strike Urshifu VMAX88/163 Rapid Strike Urshifu VMAX#88 Zubat89/163 Their skin is so thin that they'll be burned if sunlight hits them