Typically, that'll be your turn, but that could be instant token makers like Raise the Alarm or lands like Mirrex and Castle Ardenvale or Mobilization or with flash enablers like Yeva and Leyline of Anticipation
As an example, one of the most precious cards, the Black Lotus, can cost from 100 to 250 thousand dollars per card
The token copies would enter and have potentially enter effects and die at the end so they would have death triggers
If you dont have a token to sacrifice, Debut is the most overpriced Lead the Stampede youve ever seen
Protection: Benevolent Bodyguard, Giver of Runes, Sejiri Shelter, Apostle's Blessing Indestructible (Destruction replacement): Selfless Savior, Felidar Umbra, Boros Charm Other defensive measures: Deflecting Swat, Leather Armor, Robe of Stars, Lightning Greaves, Swiftfoot Boots I prioritize protection over indestructible because it can also be a means to break through (I gave up on Mother of Runes due to price)