Here, let me give you a quick example: Prior to Invasion Block, here were the instant/sorceries that destroyed a target enchantment, in the order they were printed: Of those, only Serene Offering had an on-resolution benefit of gaining some life
This gives you a blocker on the field to protect your Leader or a rested Character, but it also can prevent opponents from attacking a Character you just attacked with
20 Glissa, Herald Of Predation Incubate And Infect Suggested Cards: Elvish Vatkeeper, Grafted Butcher, Bloated Contaminator Glissa, Herald Of Predation, is one of the best commanders for Phyrexians
If you dont know what set the symbol is from, you can look online at a listing of set symbols and figure it out
Kellan, Planar Trailblazer 2/1 Jackal Pup cards dont make the cut these days, so heres Kellan, Planar Trailblazer, with plenty of upside
This card costs you 11 mana before you can even attack with it without a haste enabler, and it has no way to protect itself from removal