Runic Armasaur

Whenever an opponent activates an ability of a creature or land that isn't a mana ability, you may draw a card.

Beast Whisperer

Whenever you cast a creature spell, draw a card.

Whenever a Beast enters, you may draw a card.

Whenever you cast a creature spell, you may draw a card.

Exile the top card of your library. If it's a permanent card, you may put it onto the battlefield. If you do, repeat this process.

Whenever you cast a Druid spell, you may draw a card.
Tap seven untapped Druids you control: Gain control of all lands target player controls.

You can't cast noncreature spells.
Whenever you tap a land for mana, add one mana of any type that land produced.

Whenever another creature you control with power 3 or greater enters, you may draw a card.

Trample
Whenever another nontoken creature you control enters, you may draw a card.