Isshin, Two Heavens as One {R}{W}{B}
Legendary Creature — Human Samurai
Identity
Mardu
EDHREC rank
#1,470
Cheapest printing
US$3.76
TCGplayer
Printings
7
If a creature attacking causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time.
Every printing
highest TCGplayer market first; a card with only a thin single listing shows its low
Showcase
Isshin, Two Heavens as One
FCA · 54
TCGplayer market
US$10.32
Prerelease
Isshin, Two Heavens as One
PNEO · 224s
TCGplayer market
US$9.63
Secret Lair
Isshin, Two Heavens as One
SLD · 2459
TCGplayer market
US$8.16
Showcase
Isshin, Two Heavens as One
NEO · 328
TCGplayer market
US$4.80
Extended Art
Isshin, Two Heavens as One
NEO · 488
TCGplayer market
US$4.70
Promo Pack
Isshin, Two Heavens as One
PNEO · 224p
TCGplayer market
US$4.42
Isshin, Two Heavens as One
NEO · 224
TCGplayer market
US$3.76
In short
A Commander deck is a commander and 99 other cards, one copy of each (except basic lands), all inside the commander's colour identity. Paste a full list into the deck price calculator to price it and check it against the format.