If you are capable of healing your cards, through items, actions, or character abilities, and Beast, Tragic Hero has damage on them at the start of your turn, you can let them attack and then heal them, allowing you to still benefit from the increased strength but keeping them healthy enough to stick around
(Dont apply Weakness and Resistance for Benched Pokmon.) [M][M][C][C][C] Heavy Impact: 180 damage
Murderous Redcap and Putrid Goblin keep coming back for value, Necromancy and Animate Dead cheat bodies back fast, and Goblin Bombardment is the sac outlet that turns loops into damage
Furthermore, Energy Cards come in several elemental types: Fire, Water, Grass, Lightning, Fighting, Psychic, Dark, Metal, Colorless, and a few special varieties that buck the rules and do something unique instead
At instant speed, they sac a land and ramp two basics untapped and ready to be used