The Mighty Morphin' Magic Card

[OneAndOnly]

Mogg Simulacrum + Rhoda, Geist Avenger
.
Moghra, Warren Avenger -- 3R
Legendary Creature - Goblin {R}
Partner with Gammir Bloodmonger
Haste
Whenever a creature becomes tapped, if it's not being declared an attacker, create a 1/1 red Goblin creature token.
3/3

[lookingupanddown]

Moghra, Warren Avenger + Coral Atoll

Underground Warren
Land
Underground Warren enters the battlefield tapped.
When Underground Warren enters the battlefield, sacrifice it unless you return an untapped Goblin you control to its owner's hand.
: Add R.
3R, : Create a 1/1 red Goblin creature token. Activate only if you tapped a creature this turn without declaring it an attacker.

[AnotherAlias]

Underground Warren + Giant Opportunity

Cloudtop Castle
Land
When Cloudtop Castle enters the battlefield tapped unless you sacrifice an untapped Food.
: Add G or .
2GW, Sacrifice two Foods: Cloudtop Castle becomes a 7/7 green and white Giant creature until end of turn. It's still a land.

[dyd]

Cloudtop Castle + Embereth Shieldbreaker

Beluna's Shieldbreaker 4gw
Creature — Giant Knight
7/7
----
Skyfall {1}{g/W}{g/W}
Instant — Adventure
Destroy target artifact or enchantment. Create a Food token. (Then exile this card. You may cast the creature later from exile.)

[lookingupanddown]

Beluna's Shieldbreaker + Jace Beleren

Tamiyo, Apocryphal Researcher 2(g/w)U
Legendary Planeswalker - Tamiyo
+2: Each player draws a card. You gain twice X life and scry X, where X is the number of opponents with more cards in hand that you.
-2: Destroy target artifact or enchantment. Create a Clue token.
-7: Create a blue Avatar creature token with "This creature's power and toughness are each equal to the greatest number of cards in a player's hand." and "Whenever this creature deals combat damage to a player, draw a card."
4