Primal Adversary

When this creature enters, put a +1/+1 counter on target creature you control.

Each creature you control with a +1/+1 counter on it has trample. (It can deal excess combat damage to the player or planeswalker it's attacking.)

: Put X +1/+1 counters on target land you control. That land becomes a 0/0 Elemental creature with haste. It's still a land.

When this creature enters, put a trample counter on target non-Human creature you control.

, : Put a +1/+1 counter on each creature you control with trample.

Land creatures you control have flying.

Whenever a land you control enters, if you control seven or more lands, up to one target land you control becomes a 3/3 Elemental creature with haste. It's still a land.

Vigilance, reach, trample, haste

Titania's power and toughness are each equal to the number of lands you control.

When Titania enters, return all land cards from your graveyard to the battlefield tapped.

: Put four +1/+1 counters on target land you control. It becomes a 0/0 Elemental creature with haste. It's still a land.

Trample

Landfall — Whenever a land you control enters, put a +1/+1 counter on target creature you control. If this is the second time this ability has resolved this turn, double the number of +1/+1 counters on that creature instead.