Infirmary Healer // Stream of Life
A green two-drop that also reprinted an X-cost lifegain spell every turn would never see print, so the card rations the spell to a single use: cast the copy of Stream of Life once and the creature stays behind as a plain 2/3 Cat Cleric, its charge spent. That gate is what keeps the design in check. What you actually buy is flexibility on both axes. The X means the lifegain sizes to your mana rather than committing to a fixed number, so the copy can be a token gesture or a life-total reset depending on when you fire it. And because the effect rides a body that blocks and attacks, the lifegain half never sits dead in your hand during the games where you are ahead and want nothing to do with it. The interesting part is the timing question the card poses: play the creature early and hold the charge for a burst you can size to whatever you need later, or spend the copy immediately for a modest heal and a stable blocker. The body persists either way; only the option gets used. It is lifegain that asks when instead of whether, which is a sharper question than most cards of this kind bother to raise.
