Shifting Ceratops [Core Set 2020 Prerelease Promos] Tentacle then put a ritual counter

then put a ritual counter on Heirloom Mirror

If you put a Cave onto the battlefield this way

"I avoid violence

Set: Mystery Booster Type: Creature — Boar Beast Rarity: Common Cost: {5}{G}{G} Cycling {2}{G} ({2}{G}

Set: Mystery Booster Type: Artifact — Equipment Rarity: Common Cost: {1} Living weapon (When this Equipment enters the battlefield

Shifting Ceratops [Core Set 2020 Prerelease Promos] Tentacle then put a ritual counterSet: Core Set 2020 Prerelease Promos Type: Creature Dinosaur Rarity: Rare Cost: {2}{G}{G} This spell can't be countered. Protection from blue (This creature can't be blocked, targeted, dealt damage, enchanted, or equipped by anything blue.) {G}: Shifting Ceratops gains your choice of reach, trample, or haste until end of turn.