Clickslither

(T: Add G.)

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.) When this creature enters, reveal the top four cards of your library. Put all Elf cards revealed this way into your hand and the rest on the bottom of your library in any order.

Sacrifice a Goblin: Target creature gets +1/+1 until end of turn.

Sacrifice this creature: It deals 1 damage to any target.

This land enters tapped. T: Add R. Cycling R (R, Discard this card: Draw a card.)

Target creature gets +2/+2 and gains trample until end of turn. Draw a card.

Return an Elf you control to its owner's hand: Untap target creature. Activate only once each turn.

Haste (This creature can attack and T as soon as it comes under your control.) When this creature enters, reveal the top four cards of your library. Put all Goblin cards revealed this way into your hand and the rest on the bottom of your library in any order.