7 cards where the card types include “creature” and the mana value = 10 and the cards have an Arena ID

Set № Name ▼ Cost Type R La Artist USD EUR TIX
BRO 292 Woodcaller Automaton {10} Artifact Creature R EN Ryan Pancoast $0.14 0.12
HA3 1 Ulamog, the Ceaseless Hunger {10} Lgd. Creature M EN Michael Komarck
BRO 204 Rust Goliath {10} Artifact Creature C EN Nicholas Gregory $0.04 €0.02 0.03
EA2 1 Kozilek, the Great Distortion {8}{C}{C} Lgd. Creature M EN Aleksi Briclot
MUL 11 Jin-Gitaxias, Core Augur {8}{U}{U} Lgd. Creature M EN Kekai Kotaki $4.97 0.17
GRN 273 Impervious Greatwurm {7}{G}{G}{G} Creature M EN Simon Dominic ✶ $1.59 0.02
SIR 2 Decimator of the Provinces {10} Creature M EN Svetlin Velinov

The message was clear to Sorin—time to search for something else.