MTG Simic Aggro Deck by GBThundaII

At the beginning of your upkeep, return another creature you control to its owner's hand. If you do, put a +1/+1 counter on this creature. Otherwise, you may return this creature to its owner's hand.

When this creature enters, put a +1/+1 counter on target creature and you gain 1 life.

Whenever one or more other creatures you control leave the battlefield without dying, draw a card. {1}{U}, {T}: Return another target creature you control to its owner's hand.

When this creature enters, draw a card.

Vigilance Whenever Clement or another creature you control enters, return up to one target creature you control with lesser mana value to its owner's hand. Frogs you control have "{T}: Add {G} or {U}. Spend this mana only to cast a creature spell."

As this artifact enters, choose a creature type. Creatures you control of the chosen type get +1/+1. {T}: Add one mana of any color.

(Gain the next level as a sorcery to add its ability.) When this Class enters, target creature you control deals damage equal to its power to target creature you don't control. {1}{G}: Level 2 Whenever you attack, target attacking creature gets +1/+0 and gains trample until end of turn. {3}{G}: Level 3 At the beginning of your end step, if you control a creature with power 4 or greater, draw a card.

Choose two target creatures controlled by different players. Return those creatures to their owners' hands.

Affinity for Frogs (This spell costs {1} less to cast for each Frog you control.) Target creature you control deals damage equal to twice its power to target creature you don't control.

Exile target creature you control, then return it to the battlefield under its owner's control. If that creature is a Bird, Frog, Otter, or Rat, draw a card.

({T}: Add {W}.)

({T}: Add {U}.)

({T}: Add {G}.)

This land enters tapped unless you control two or fewer other lands. {T}: Add {G} or {U}.

This land enters tapped. {T}: Add {G} or {U}. {3}{G}{U}: Until end of turn, this land becomes a 5/5 green and blue Plant creature with trample. It's still a land. Whenever this land attacks, up to one other target creature has base power and toughness 3/3 until end of turn.

{T}, Sacrifice this land: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle. Then if you control four or more lands, untap that land.

{T}: Add {C}. {2}, {T}, Sacrifice a token: Draw a card. {3}, {T}, Pay 1 life: Create a 1/1 blue Fish creature token. {4}, {T}: Create a Treasure token.