For just one green, one white, and one blue mana, you could web-sling in anything from a Progenitus to a Jodah to an Atraxa
This card is similar to Basari's Acolyte from the Core Set from 2021 , with the Felidar Savior card also offering a +1/+1 counter on up to two target creatures of the player's control when it enters the battlefield
This is a good creature for a reanimation or self-mill deck thatll be filling your graveyard with resources to target with it
If the equipped creature is dealt lethal damage at the same time that you gain life, it will die before Excalibur II's first ability would resolve
Some of these cards are commanders that will appeal to niche groups, while others will find their place elsewhere
If you can resolve a delve creature, most of their tiny creatures are just going to lose the fight unless they have one of their few answers