Perhaps if they do a Silmarillion MTG set
At that point, youre mitigating against 2-for-1ing yourself but that is still kind of a narrow subset of cards for you to sacrifice Paying 7 for this is bad, 6 is medium, and 5 is solid
Phoenix of Ash A phoenix with escape is pretty flavorful
Block them with tougher creatures Even though first strike creatures get to deal damage before normal creatures, it doesnt mean that damage is enough to defeat your creatures
Esika, God of the Tree's front face isn't all that interesting all it does is turn your legendary creatures into mana dorks
Artifact Color tag templates(None) Darksteel Relic Indestructible (Effects that say "destroy" don't destroy this artifact.) Artifact Color tag templates(None) Delif's Cone , Sacrifice this artifact: This turn, when target creature you control attacks and isn't blocked, you may gain life equal to its power