mtg shapeshifter cards Corrupted 0056 Modern Horizons 3 MH3 Magic The Gathering S2407* Token Creature — Shapeshifter Rarity Magic the Gathering [010] FOURTH

Trample is certainly better than looking at the top of your library most of the time but is much more important for a 6/6 than a 5/5 and with flying already it is no significant loss

What you can flash out depends on whether Kiannes power is even or odd, which I find to be a delightful balancing mechanic

You can also grab bigger answers such as Damnation or some problems of your own

Flatline overwrites any effects that set a creature's power and toughness

Quirion Beastcaller Quirion Beastcallers movement ability is contingent on having counters on it in the first place, which it gets whenever you cast creature spells