Infinity block

The infinity block when placed starts off as a grass block and continues to put more better and more rare blocks the more you break it. It cannot be pushed by pistons and can only be mined with a diamond pickaxe with efficiency 5(so better not use it for grinding this thing)

Crafting:

Bedrock-End portal frame-command block

Item:Portal-Item:End_portal-Item:End_gateway

Item:player_head-Spawnzombiehorse-Item:tnt_white