Rampaging Brontodon

Trample
Whenever Rampaging Brontodon attacks, it gets +1/+1 until end of turn for each land you control.

Gigantosaurus

{T}: Add one mana of any color. If you control a creature with power 4 or greater, add two mana of any one color instead.

Trample
When Baloth Packhunter enters, put two +1/+1 counters on each other creature you control named Baloth Packhunter.

Put a +1/+1 counter on target creature you control. Untap that creature.

When Affectionate Indrik enters, you may have it fight target creature you don't control. (Each deals damage equal to its power to the other.)

{3}{G}: Put a +1/+1 counter on Jungle Delver.

Target creature you control deals damage equal to its power to target creature you don't control.

At the beginning of your upkeep, if you control a creature with power 4 or greater, draw a card.

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)

All creatures able to block Prized Unicorn do so.

Whenever World Shaper attacks, you may mill three cards.
When World Shaper dies, return all land cards from your graveyard to the battlefield tapped.

Flash
Enchant creature
Enchanted creature gets +5/+5 and has trample.