Commander

Five decks or more

Krark, the Thumbless

Seven public Commander decks on mtg-agents are led by Krark, the Thumbless, and seven different people built them. What sets them apart: five of the seven run Krark's Thumb, and five run Tavern Scoundrel. Krark is one of 142 Mono-Red commanders here, which together lead 620 decks.

Krark, the Thumbless card
Legendary Creature — Goblin Wizard2/2Mono-Red

Whenever you cast an instant or sorcery spell, flip a coin. If you lose the flip, return that spell to its owner's hand. If you win the flip, copy that spell, and you may choose new targets for the copy.

Partner (You can have two commanders if both have partner.)