whenever you gain life cards mtg Rules Text: "Whenever life", Colors: Black, 35 Marina Vendrell's Grimoire (DSK) #308

Reach and trample are important, and X number of +1/+1 counters is basically standard hydra procedure, but I love that the counters go onto the card while it's an aura, then still count when it becomes a creature

First, Walking Ballista needs to have at least two +1/+1 counters on it (by paying four generic to cast it, ideally), and Heliod, the Sun-Crowned needs to be on the battlefield

Some third party organisations hosting Magic tournaments permit participants to include a set number of proxy cards in their decks (5 and 10 being common amounts), a clause that especially comes up for the cost-intensive vintage format

Sanguine Bond demonstrates this mirror ability, but all of these effects have an incredible interaction with Exquisite Blood

Kitsa has vigilance, prowess, and two abilities - you can tap the otter to draw a card and then discard a card, or you can spend two generic mana and tap it to copy an instant or sorcery spell you control, with the caveat that Kitsa needs three power to do so