Zarichi Tiger

A four-mana 2/3 whose only trick is paying two more mana to gain two life is a lifegain engine on the slowest possible setting, and that pace is the whole tension. Each activation costs plus the tap, so two mana for two life, a rate that loses badly to any real clock and never threatens to do anything proactive. What it offers instead is repeatability with no cap and no graveyard or hand cost: a body that survives most early removal and a tap ability that keeps producing as long as the creature stays on the battlefield. Designs like this find a home when a set needs a common-rarity speed bump for go-wide aggro, a defensive blocker that also bends the race math against the opponent over several turns. The Cat type is incidental rather than load-bearing; nothing here wants a build around it. As removal-bait that buys time and chips at a burn clock, it does exactly one honest job, slowly.