Trample

Whenever you cast a creature spell with mana value equal to Jackal's power, copy that spell, except the copy isn't legendary. Then put a +1/+1 counter on Jackal. (The copy becomes a token.)

Landfall — Whenever a land you control enters, a random land card in your library perpetually gains "Whenever this land becomes tapped, draw a card."

(: Add or .)

As this land enters, you may pay 2 life. If you don't, it enters tapped.

Flying

Landfall — Whenever a land you control enters, target creature has base power and toughness 3/3 until end of turn. If you control six or more lands, that creature has base power and toughness 6/6 until end of turn instead.